It�s hard to run for your life carrying an egg as big as a watermelon. An egg is awkward to carry when it�s over a foot long, delicate, you�re out of breath, and your side hurts. And it�s umpteen-ton mother is thundering along after you. You tend to look over your shoulder a lot and trip on roots and vines and maybe scream now and again.

It was not the only dinosaur egg in the world�not that world, anyway� but if I could get a few hundred yards farther and nothing happened to the time machine, it would be. Sixty-five to eighty million years from now. The dinosaur egg, that is.

They wanted a dinosaur and they knew they weren�t going to get any dinosaur anyone would pay to see into the TDC�Temporal Displacement Container, as they flat out refused to called it a �time machine.� So some bright physics weenie figured out the egg came first, and it was a lot more portable. Two or three eggs would be even better.

A lot they knew.

All they needed was someone dumb enough to say, �I�ll go,� and I was the one that said it, for reasons of my own. �Uh, OK, I�ll do it.� But I�m no dummy, I�d read SF. And real science, too.

I understood what was needed. �I go back, get an egg or three.� I had looked around the conference room and continued. �OK, that means that particular dinosaur never existed, never had his or her own family of little dinos, which in turn never had kids, etcetera, etcetera.�

Several people nodded wisely. �So I swipe some eggs and whammo, there�s no civilization-as-we-know-it, everything looks like Cleveland, the Chicago Cubs win the Series, and Rush Limbaugh is king.�

No, no, no, they said. They talked�with their hands, too�a long time, often at the same time, selling me the idea. It boiled down to this: Time was not linear, not exactly, or more exactly, it was a whole lot of lines, rather like a tapestry. You cut one thread, the design doesn�t change, certainly not significantly. They talked well.

They�d gone to a lot of school, and had capital letters after their names.

Get the egg, they say, and some other thundering lizard will fill in as guest ancestor, and we here in the Oohs would have the most incredible draw ever. The year 2009 would be the year Johnny Ryan brought back the first dinosaur. Live. And in whatever color they came in.

Think of the merchandising alone, Johnny, Parkinson said. Five hundred million, at least, and you�ll get a piece. Movies, TV, your life story, you�ll be on every talk show in Christendom, on every best-seller list�we�ll make billions.

Bring back eggs of different types, Stillman said, it�ll help merchandising. Oh, and science will love you.

More things to sell, Wilson said, and Gold nodded in agreement. We�ll have eggs and little dinos, grown-up dinos, ferns, a model of the TDC. We�ll have clothes for you to wear that can go on action figures, Miller added. They�ll have lots of pockets�so pick up anything interesting, he said.

We�re developing a helmet cam, Simpson said, adding that it would run from the time I left until I got back, so watch my language. Plus before and after interviews with scientists to postulate and evaluate.

So I said I�d do it. They seemed relieved, so I guess volunteers weren�t so easy to find, after all. But I didn�t do it for the reasons they thought. They thought I wanted the money and the starlets and the groupies and the Fame. (When they said it, Fame was always capitalized.) I did it because I had to get out of town for awhile. And quickly. There was this misunderstanding with the Jaroslava brothers and they�d given me a deadline I hadn�t a chance in hell of meeting, or postponing.

It wasn�t until the countdown started that I realized something terrible, and then it was too late. �See you in a few minutes,� the weenie in the white lab coat said.

�A few minutes?� I croaked. Inside, I was going Whaaat?

�Oh, it won�t seem that way to you,� he grinned back. �You could be there a week, an hour, a year, you�d still come back in�� he looked at a dial. �Ten minutes. Just long enough for the gaffers on the frandistats to cool down and the gamel-brinners to get back up to speed.�

OK, so that�s not exactly what he said, but that�s what I heard. �But, I��

Then things shimmered and lurched and suddenly everything stank and I was in some kind of weird fantasy forest. I knew at once I was in even bigger trouble that I had run away from.

For one thing there were bugs. Big bugs. All over. It was hot and humid beyond belief. I hate heat and humidity. I hate bugs, I hate anything with more than four legs and less than two.

As the air I�d brought with me dissipated I felt there wasn�t enough air in the air. Even so, I might have said OK, I can live with it, if it hadn�t whirled around and looked right at me.

It was a reptile, as big as a mean pony, but with two legs and a long neck with a small head, big eyes, and a tail that whipped up and straightened out as it ran at me. It looked vicious, hungry, and an efficient killer. It also looked�I swear�eager.

Squish, skoosh, splot, it came charging, slashing through these fern things, around some kind of spiny tree, and it took that long for me to unfreeze and react.

Keeping the �tapestry view of time� in mind, I had brought along a Colt Python .357 with hollow point ammunition. Before I was eaten, one or more things were going to eat lead. I didn�t care if a Volkswagen in Idaho or a Formula III on the bricks coughed and stopped, because there was no gas in the tank, because I�d clobbered a family line of lizards. I squirmed out of the TDC and hauled out my pistol.

I hadn�t counted on my hand shaking. I forgive myself�after all, it was the first time a Homo sapien had ever faced a dinosaur who fancied him for lunch. No matter how many caveman movies you�ve seen.

So I shot. It was very noisy. Besides all the squish, splat and glop, there was Awk and a kind of Spaa�! that really disconcerted me more than somewhat. The jungle I was in came alive.

Again, unlike the movies, big guns make Big Noise. KA-BOOM! it went� just like they say in the comics. The first noise of its kind in the history of the worlds, strictly speaking.

But I missed. Startled, this scaled �it� started running in the other direction while it was still on its kill-run at me and ended up tangled in its own feet, falling heavily on its side, splashing me with sticky, oozy, stinking mud that had things crawling in it.

It whapped its tail against the tree I had jumped behind. The tree shook, showering down a lot more creepy-crawlies. Everything around me started running, hopping, inching, galloping and humfullnating away. Things came up out of the mud and slithered off. Birdoids with very long tails flap-flap-flopped away. Some made noises, some saved their breath.

The big scaly thing that had prompted this display of sincere but erratic marksmanship, kicked and scrambled to his, her, or its feet, scattering mud and greenery, and went off that way, zero to sixty in ten seconds. I was left alone, comparatively speaking.

Well, not quite alone. Things crawled on me. I itched, I dripped, I stank, I shivered, and I thank God that Wilson had insisted on all those shots and Gold had agreed. I slapped off what I could and started walking. I was supposed to be searching but I was really just walking.

I knew what I was looking for, of course, I just didn�t know what it looked like. No one did. Dinosaur nests hadn�t made it into the 20th century.

Maybe a mud structure, like a swallow�s nest, as one consultant had insisted. No, like a bird nest, Wilson said, only bigger, and Gold had agreed. Not in a tree, probably not in a cave�they�re too big�Simpson explained. Maybe in the sand, like a turtle, Stillman suggested, adding that I should keep my eyes open.

Whatever. They didn�t know, I didn�t know, so go look. I went looking.

The paintings they had shown me of this period had all looked so clean, Busy, but clean. They left out the stink, the thousand-bug-per-square-yard count, the unseen bacteria, the wet, the heat, the watery sounds, the heavy air. Flies�or whatever they were�thought I was delicious. More stuff slithered around underfoot. Something howled, something grunted, something screamed. The trees looked the way a kid draws a forest. Not real, but big, simple.

I remembered something from all the damned lectures they set up for me. It was a Deinonychus, better known to dino-lovers everywhere as �terrible claw.� That meant I was in the Early Cretaceous. At least that�s where they said they were sending me, about sixty-five to eighty million years from breakfast this morning. The Triassic and Jurassic were history, and here I was.

It was a major effort to unclench my hand from the customized grip of the Python and holster it. The only reason they let me take it was because if something dined a la carte on imported moi they�d have to start over. Also they didn�t want to scare me into thinking I�d really need it.

So they kind of pretended not to see the holstered revolver and the filled cartridge belt. It was, after all, near the end of the Age of Dinosaurs�what real harm could I do? These guys had a date with a meteor, anyway.

So I trudged on, not turning my head too quick so that the helmet cam could get shots that didn�t make viewers seasick. The ground slanted up a bit and got less gooshy underfoot. The jungle thinned out and I got some Sun now and again. I was in central Montana, or what would be Montana. I saw a pterosaur flapping along, as big as a World War II fighter, and looking very much like a special effect.

Then I saw the nest.

I knew what it was right off. A kind of depression out in the warming Sun with three-foot prints all around it. The three big spotted eggs were a tipoff.

Now all this running around jillions of years before I was born was all very nice, and I�m sure there were some who would be taking notes like mad and peeing in their pants over the wonder of it all. I was on the verge of soiling myself all right, but mainly because the hard part was now here� stealing the children of something that made three-foot dents in the hard ground when it walked.

I hunkered down behind a spiny bush and fished out the field glasses and took a look around. I saw a lake and something that reminded me of the discredited Loch Ness monster in the shallows. It was placidly eating slimy plant stuff. Fine. It was the carnivores I had to watch for. Like the one who had laid those eggs.

I got out my net bag and started creeping up on the nest, out in the open�until I realized what I was doing and just straightened up, glanced around and stomped over and took all three eggs. They were big, heavy, speckled, warm, and dirty. I figured the shell had to be thicker and stronger than the chickens of my time, but I still put bubble packing around them.

I felt momma before I heard her.

I heard her all too well before I saw her, but by then I was running. I caught a glimpse as she came up out of the forest on one side and I fled in the other direction, adrenaline-powered.

The mother. Momma Tyrannosaurus rex. The biggest and most powerful of all the carnosaurs. This one was a good eighteen feet high, about forty feet long, and the Sun glinted off wet teeth as long as daggers.

I knew she wasn�t really smart, but since she ate mobile living things she had to be smarter and faster than animals that ate grass. As the man said, it doesn�t take many smarts to sneak up on a blade of grass. And this was all her turf.

OK, I was scared. I ran. If you thought you wouldn�t, you�re a liar. I slipped and fell, but I always held up the bulging net. Something small and snarly popped up in front of me, hissing horribly. I jumped over it, and kept going, breathing hard.

I activated the homer and it beeped me to the northeast a bit. Then I heard the roar. Then another roar. Momma had discovered the foul deed. She�d gone off for a moment and her eggs were gone.

I don�t know if things as big as loading cranes have a keen sense of smell or not, or whether she saw me, or what, I just knew she was on my trail. I could heard things behind me being stomped, squished, sploshed and splattered. Things cawed and squawked and hissed and flapped and scurried and burrowed.

My heart was beating so fast it hurt. My lungs hurt. Some kind of flying bug fluttered up in front of me and I took it right in my mouth and that was when I realized I was screaming. Well, maybe not screaming, but certainly breathing out hard, real hard. OK, I was screaming.

I spit out whatever I�d gulped, tumbled down in the muck, staggered up like a three-day drunk, spit some more, untangled my foot from what I thought was a root until I saw the scales�and ran some more.

I slipped and crashed into a thick, pineapply-looking tree and suddenly there was eggstuff all over the front of me. I held up the net bag, even as my feet propelled me onward, and saw that two of the eggs looked OK. But the smashed egg contained a pretty well formed�and decidedly ugly� Tyrannosaurus chick.

I plucked at a few of the larger shell fragments, saying, �I�m sorry, I�m sorry.� But I knew, fully-grown that ugly little chick could have swallowed me whole, literally, and still be looking for dinner.

The beeper was beeping and out of the corner of my eye I saw something pacing me, slipping through the trees. Oh, my god! It was the fleet-footed Deinonychus again, or one just like it.

I was running, it was running and behind me Mother was very definitely after me, a flat-footed, ground-shaking, distance-chomping run. No sluggish dinosaurs here. Obviously not cold-blooded.

I began to wonder if they had told me everything I needed to know about the time machine. The Temporal Displacement Container, that is. Maybe it needed warming up. They had said they had �foolproofed� it� there was a red button labeled BACK. But maybe they had to burp first, or get it up to speed, or something they thought everyone knew but I didn�t. Maybe I should have paid more attention.

They had all treated me as if I wasn�t smart enough to understand anything, which I frankly resented, but I needed a fast ticket out of town. I knew I wasn�t going to have much of a �window in time� as professorial types talk.

My past and future difficulties with the Jaroslava brothers were unimportant compared to whether those lab-coated wimps had thought about the necessity of fast takeoffs. For all I knew, fast to them was a swift ten minutes of preflight.

The deino was angling his run. It was aiming to have eggs with his ham. I pulled out the Colt Python and was about to let one go in the scaly fella�s direction when my outstretched arm ran into a sapling and the gun spun off into the gooey mud. I yelped and groaned because it felt like my forearm was broken. That left just running, the most ancient of defenses.

The damned deino made an agile side jump over a fallen tree and damned near landed on me. This was not its first run-to-ground. I swung to the right and leaped over a thorny bush. Something snapped at my feet.

The deino braked, twisted and came at me again. A lot of teeth and bad breath, very close. Too close. I swear its eyes were red. I put up my left hand to ward off its striking head before I realized that was the hand with the bag of eggs.

Scrunch! Deino s snout broke another egg, splattering us both. I moaned, spit out stuff, and ran. I couldn�t veer very far one way or the other or I�d never get to the TDC.

I could hear the thunderous footsteps of Momma Rex, then a horrible squeal, a throat-ripping cry of distress that stopped, suddenly. I shot back a look. The momma beast was throwing aside the pony-sized deino without slowing. I didn�t slow either.

I thought of Ray Jaroslava, who liked to hurt people, and of Millie�s Turn of the Century Burgers and ice cold beer and Len and Paul and Gloria and that sitcom set in the Moulin Rouge with all those well-built women and the one that looked like Suzanne and�

WHUCK!

I ran into another tree, but this time my left arm shot around it. The last egg was saved, swinging in the net bag with the gooey bits of its litter-mates. The beeper was leading me and I was leading an outraged mother monster who weighed more than an African elephant, only with claws and teeth.

Just a little farther.

I was pumping in the incredible smells and my side was hurting me like one of Ray Jaroslava�s �reminder� hits. Maybe I was hallucinating but I had this incredible thought: Momma Rex gets me and I�m dead, rotting, and all this 21st century bacteria inside me is what killed off the dinosaurs. I kill off the big lizards.

I was hallucinating. It flashed through my tumbled mind to stop, hold up the Python to the egg and snarl at Momma Monster, �Lemme alone or the kid gets it!� But the gun was back there somewhere, maybe to be found and wondered about down the pike by Ogg the Wonder Neanderthal.

Oh, god, I was hallucinating. Oxygen deprivation. Fear of imminent death. Did it matter?

Then there it was, just ahead, the time machine. No Wellsian dream of Victoriana, no gleaming capsule of super-steel with drifting steam and electronic music, no beep-beeping lights, just a rather fragile open gridwork I�d come in. I saw a red light blinking and for a second I couldn�t remember what that meant. Good? Bad? Usual?

Something yipped and fanged me in my boot. I kicked at it, yanked open the door and dived in, careful to keep the last egg from hitting anything. I stuffed it into the space provided even as I slapped the red button marked BACK. Then I just hunkered there, watching Mom knock down a tree and coming raging right at me.

Don�t blame you, I thought. I�d do the same.

The ground shook from her bellowing and I started to scream and�

�Stopped. They were staring at me. Physics weenies in white coats with pocket protectors, guys I knew. Sterile lab. They were outside the chamber, staring in. I was inside. I was back. In the isolation room. I was alive.

When they let me out the bug boys�as I called them�went silly over the stuff they found on and in my clothes. They went totally crazy over something they found in my shorts. That was in my shorts?

They rushed the remaining egg off to the incubator. In tact, they had several incubators. I�d disappointed them there.

But the thing that they loved was the dead but almost intact little bugger that had bitten into my boot. It was a whole different field or something and a separate team was put together for it.

They orchestrated the publicity thing quite well. The whole time travel thing was declared illegal or something and handed over to the military. I was a hero. My clothes ended up in the Smithsonian, along with the helmet-cam footage. Including the screaming.

I got pretty good at telling the story on the talk shows. A ghost writer began my autobiography. A pretty good actor with a history of adventure films�whose only resemblance to me was that we both had two eyes�was signed for a picture, but by the time it came out it didn�t do that well, because everyone had seen the helmet-cam footage a million times.

The dinosaur was born and is doing well. He eats a lot but they don�t show that much because he prefers carrion. I didn�t know what carrion was either, but it�s old dead meat. Smelly old. Ripe. They call him Rex, what else?

Tonight I have a date with a female cousin of the Jaroslava brothers. They�ve been handling my investments. They suggested it. But it�s been OK. No, really.

Things look the same. But then, if they didn�t, I�d be the only one to know. Rush Limbaugh isn�t king and only Cleveland looks like Cleveland, thank God. At first there was talk about me going back�I guess they wanted a sequel and figured they could talk the military into it�then suddenly no one was talking about it.

I had no intention to go back, at least not without the Marines or a SWAT team, but I got curious. How come the sudden blackout? Wilson finally told me, and Gold agreed.

Time travel to any period over 10,000 years ago was forbidden, verboten, a sincere forget-it. �Six million years ago,� Wilson said, �our genomes were a bit less than 2 percent different than a chimp. Today we�re only 1.6 percent different.�

�So?�

�Well, uh, that thing that bit you, it was, um, 18 percent different but it was seventy-one million years back.�