Out of the mist, one hundred yards away, came Tyrannosaurus Rex.

"It," whispered Eckels. "It......

"Sh!"

It came on great oiled, resilient, striding legs.

"Why, why," Eckels twitched his mouth.

"It could reach up and grab the moon."

"Sh!" Travis jerked angrily. "He hasn't seen us yet."

"It can't be killed,"

Eckels pronounced this verdict quietly,

as if there could be no argument.

He had weighed the evidence and this was his considered opinion.

The rifle in his hands seemed a cap gun.

"We were fools to come. This is impossible."

"Shut up!" hissed Travis.

"Nightmare."

"Turn around," commanded Travis.

"Walk quietly to the Machine. We'll remit half your fee."

"I didn't realize it would be this big," said Eckels.

"I miscalculated, that's all. And now I want out."

"It sees us!"

"There's the red paint on its chest!"

The Tyrant Lizard raised itself.

"Get me out of here," said Eckels.

"It was never like this before. I was always sure I'd come through alive.

I had good guides, good safaris, and safety.

This time, I figured wrong.

I've met my match and admit it.

This is too much for me to get hold of."

"Don't run," said Lesperance.

"Turn around. Hide in the Machine."

"Yes." Eckels seemed to be numb.

He looked at his feet as if trying to make them move.

He gave a grunt of helplessness.

"Eckels!"

He took a few steps, blinking, shuffling.

"Not that way!"

The Monster, at the first motion, lunged forward with a terrible scream. It covered one hundred yards in six seconds. The rifles jerked up and blazed fire. A windstorm from the beast's mouth engulfed them in the stench of slime and old blood. The Monster roared, teeth glittering with sun.

Like a stone idol, like a mountain avalanche, Tyrannosaurus fell.

Thundering, it clutched trees, pulled them with it.

It wrenched and tore the metal Path.

The men flung themselves back and away.

The body hit, ten tons of cold flesh and stone.

The guns fired.

The Monster lashed its armored tail,

twitched its snake jaws, and lay still.

A fount of blood spurted from its throat.

Somewhere inside, a sac of fluids burst.

Sickening gushes drenched the hunters.

They stood, red and glistening.

The thunder faded.

The jungle was silent.

After the avalanche, a green peace.

After the nightmare, morning.

Billings and Kramer sat on the pathway and threw up. Travis and Lesperance stood with smoking rifles, cursing steadily. In the Time Machine, on his face, Eckels lay shivering. He had found his way back to the Path, climbed into the Machine.

Travis came walking, glanced at Eckels, took cotton gauze from a metal box, and returned to the others, who were sitting on the Path.

"Clean up."

They wiped the blood from their helmets.

They began to curse too.

The Monster lay, a hill of solid flesh.

Within, you could hear the sighs and murmurs as the furthest chambers of it died,

the organs malfunctioning,

liquids running a final instant from pocket to sac to spleen,

everything shutting off, closing up forever.

It was like standing by a wrecked locomotive or a steam shovel at quitting time,

all valves being released or levered tight.

Bones cracked;

the tonnage of its own flesh,

off balance, dead weight, snapped the delicate forearms, caught underneath.

The meat settled, quivering.

Another cracking sound. Overhead, a gigantic tree branch broke from its heavy mooring, fell. It crashed upon the dead beast with finality.

"There." Lesperance checked his watch.

"Right on time. That's the giant tree that was scheduled to fall and kill this animal originally."

He glanced at the two hunters.

"You want the trophy picture?"

"What?"

"We can't take a trophy back to the Future. The body has to stay right here where it would have died originally, so the insects, birds, and bacteria can get at it, as they were intended to. Everything in balance. The body stays. But we can take a picture of you standing near it."

The two men tried to think, but gave up, shaking their heads.

They let themselves be led along the metal Path.

They sank wearily into the Machine cushions.

They gazed back at the ruined Monster,

the stagnating mound, where already strange reptilian birds and golden insects were busy at the steaming armor.

A sound on the floor of the Time Machine stiffened them.

Eckels sat there, shivering.

"I'm sorry," he said at last.