Crowley crossed the room to the door and said something to the guard there. He returned in a moment with an anthropoid ape in a cage. He sat it on the table and looked at them.

"O.K.," he said to Braun, his voice dangerous. "Let's see you inject the monk with this new batch of serum."

Braun raised his eyebrows.

The other watched him narrowly, saying nothing further.

Dr. Braun shrugged, located a hypodermic needle and prepared it. In a matter of moments, the animal was injected.

Ross Wooley said sourly, "Don't you trust your fellow man, Don?"

"No, I don't, and stop calling me Don. It's Dan. Daniel Crowley."

The three of them looked at him in bewilderment.

The ape was beginning to shimmer as though he was being seen through a window wet with driving rain.

"Don's my goody-goody brother. Used to live in the same house with me, but ever since we were kids and I got picked up on a juvenile delinquent rap for swiping a car, he's been snotty. Anyway, now he's moved out to Frisco."