coffin contained now, if it wasn't already too late.

It represented the missing link in his picture of the aliens. What happened to them during the period of regrowth? Did they revert to their natural form? Were they at all conscious while the body reshaped itself into wholeness? Dane had puzzled over it night after night, with no answer.

Nor could he figure how they could escape from the grave. Perhaps a man could force his way out of some of the coffins he had inspected. The soil would still be soft and loose in the grave and a lot of the coffins and the boxes around them were strong in appearance only. A determined creature that could exist without much air for long enough might make it. But there were other caskets that couldn't be cracked, at least without the aid of outside help.

What happened when a creature that could survive even the poison of embalming fluids and the draining of all the blood woke up in such a coffin? Dane's mind skittered from it, as always, and then came back to it reluctantly.

There were still accounts of corpses turned up with the nails and hair grown long in the grave. Could normal tissues stand the current tricks of the morticians to have life enough for such growth? The possibility was absurd. Those cases had to be aliens—ones who hadn't escaped. Even they must die eventually in such a case—after weeks and months! It took time for hair to grow.

And there were stories of corpses that had apparently fought and twisted in their coffins still. What was it like for an alien then, going slowly mad while it waited for true death? How long did madness take?

He shivered again, but went steadily on while the cemetery fence appeared in the distance. He'd seen Blanding's coffin—and the big, solid metal casket around it that couldn't be cracked by any amount of effort and strength. He was sure the creature was still there, unless it had a confederate. But that wouldn't matter. An empty coffin would also be proof.

Dane avoided the main gate, unsure about whether there would be a watchman or not. A hundred feet away, there was a tree near the ornamental spikes of the iron fence. He threw his bag over and began shinnying up. It was difficult, but he made it finally, dropping onto the soft grass beyond. There was the trace of the Moon at times through the clouds, but it hadn't betrayed him, and there had been no alarm wire along the top of the fence.

He moved from shadow to shadow, his hair prickling along the base of his neck. Locating the right grave in the darkness was harder than he had expected, even with an occasional brief use of the small flashlight. But at last he found the marker that was serving until the regular monument could arrive.

His hands were sweating so much that it was hard to use the small shovel, but the digging of foxholes had given him experience and the ground was still soft from the gravediggers' work. He stopped once, as the Moon came out briefly. Again, a sound in the darkness above left him hovering and sick in the hole. But it must have been only some animal.

He uncovered the top of the casket with hands already blistering.

Then he cursed as he realized the catches were near the bottom, making his work even harder.

He reached them at last, fumbling them open. The metal top of the casket seemed to be a dome of solid lead, and he had no room to maneuver, but it began swinging up reluctantly, until he could feel the polished wood of the coffin.

Dane reached for the lid with hands he could barely control. Fear was thick in his throat now. What could an alien do to a man who discovered it? Would it be Harding there—or some monstrous thing still changing? How long did it take a revived monster to go mad when it found no way to escape?

He gripped the shovel in one hand, working at the lid with the other. Now, abruptly, his nerves steadied, as they had done whenever he was in real battle. He swung the lid up and began groping for the