"Just doing what I thought was best," I said. "I want to find her as soon as possible."

"Well, stop it! Now! Let us handle it from here on in!"

Then I lowered the boom. "Now you listen, Brock. I am in charge of Jack Ravenhurst, not you. I've lost her, and I'll find her. I'll welcome your co-operation, and I'd hate to have to fight you, but if you don't like the way I'm handling it, you can just tell your boys to go back to their regular work and let me handle it alone, without interference. Now, which'll it be?"

He opened his mouth, closed it, and blew out his breath from between his lips. Then he said: "All right. The damage has been done, anyhow. But don't think I won't report all this to Ravenhurst as soon as I can get a beam to Raven's Rest."

"That's your job and your worry, not mine. Now, have you got any leads?"

"None," he admitted.

"Then I'll go out and dig up some. I'll let you know if I need you." And I cut off.

Dr. Perelson was sitting on his couch, with an expression that indicated that the pH of his saliva was hovering around one point five.

I said, "That will be all, Dr. Perelson. Thank you for your co-operation." And I walked out into the corridor, leaving him with a baffled look.