Rick worried about the problem of lighting the containers without getting burned, then went to the workshop and selected rags. He twisted the rags loosely and tied them together, poured gasoline into a bucket and soaked his rag fuse. The last step was to insert one end of the fuse in each can. When the time came, he would be between the cans, and he would light the center of the rag string. The fire would travel rapidly, because of the gasoline.

In case Mike was delayed for any great period, Rick kept the gasoline handy. He might have to wet down the cans and fuse again. He had forgotten to ask where Mike would come from, and Steve hadn't volunteered. Probably he would come from Washington, which meant about an hour's flying time in the plane Mike would use, a fast little four-place job that Rick had long coveted. But Mike wouldn't be ready for take-off instantly. Time had to be allowed for Steve to give him instructions, to get from wherever he was to the airport, and then get the plane gassed and ready. Allow another hour. That meant two hours in all.

Inside, Rick was still scared. How did they know the electronic mind reader wouldn't be activated at any moment? He hurried into the house and went upstairs to where his father was packing. He couldn't do anything, and he knew it. But it helped, just being near the scientist. Apparently Scotty felt the same. He had joined Hartson Brant, too. But Barby, Jan, and Mrs. Brant had preceded him.

The scientist smiled. "Never had so much help packing before."

The smile was strained, and Rick thought he knew why. He had seen his father face great physical danger without losing a bit of his composure. But the insidious weapon that could read all reason out of minds was far more horrible to a man like Hartson Brant than any physical danger could be. Bullets, knives, and clubs may leave bad wounds, or they may kill. But what chance is there for anyone with a damaged brain?

Scotty looked at his watch and held it up for Rick to see. Nearly an hour and three-quarters had passed since the call to Steve. Rick gestured to Scotty and urged, "Hurry, Dad."

"I'm ready." The scientist closed his bag. Barby got to it first and lugged it down the stairs, refusing Scotty's offer of help.

The boys went to their stations while the others waited on the porch. Rick checked to be sure he had matches, then worried because a wind had sprung up. Suppose it blew his match out? He was about to go borrow his father's lighter when he heard the far-off drone of a plane. There wasn't time now! He held the matches in his hand, ready.

The drone grew nearer, rising to a high whine. The plane was diving! Suddenly it was overhead and gone with a crash of sound. Rick saw its lights head out to sea. Mike was making a tight turn to come in for a landing.

Rick's lips formed the words. "Now, Scotty! Now!"