reader would have recognized. It was a Master Tape, the Utter Top Secret Programming document that would direct the terrestrial defense in case of a Gool invasion. It was almost shocking to see it lying there—unprotected except for the flimsy case. The information it contained in micro-micro dot form could put my world in the palm of the enemy's hand. The room with the tool kit would be the best place to work, I decided. I brought the suitcase containing the electronic gear back from the outer door where I'd left it, opened it and arranged its contents on the table. According to the Gool these simple components were all I needed. The trick was in knowing how to put them together. There was work ahead of me now. There were the coils to wind, the intricate antenna arrays to lay out; but before I started, I'd take time to call Kayle—or whoever I could get at the other end of the hot-line. They'd be a little startled when I turned up at the heart of the defenses they were trying to shield. I picked up the receiver and a voice spoke: "Well, Granthan. So you finally made it." VI "Here are your instructions," Kayle was saying. "Open the vault door. Come out—stripped—and go to the center of the parking lot. Stand there with your hands over your head. A single helicopter manned by a volunteer will approach and drop a gas canister. It won't be lethal, I promise you that. Once you're unconscious, I'll personally see to it that you're transported to the Institute in safety. Every effort will then be made to overcome the Gool conditioning. If we're successful, you'll be awakened. If not...." He let the sentence hang. It didn't need to be finished. I understood what he meant. I was listening. I was still not too worried. Here I was safe against anything until the food ran out—and that wouldn't be for months. "You're bluffing, Kayle," I said. "You're trying to put the best face on something that you can't control. If you'd—" "You were careless at Delta Labs, Granthan. There were too many people with odd blanks in their memories and too many unusual occurrences, all on the same day. You tipped your hand. Once we knew what we were up against, it was simply a matter of following you at an adequate distance. We have certain shielding materials, as you know. We tried them