The cage before him, however, appeared normally animated. The monks were feeding and playing happily. Feldman was grinning. "Had to try a new derivative, Sylvester, but the sulfa series was the right approach."

Murt stared at the cage, redeyed. "Hadn't realized you succeeded in producing the symptoms in monkeys."

Phyllis said, "Why, I gave you that report yester—" She broke off with an understanding glance.

Peterson was exclaiming, "I never saw such a rapid-acting remedy! And so far, there's no evidence of toxic effect."

"It must absorb directly into the gland tissue," Feldman added. "Hardly had time to materially reduce the virus content significantly."

Murt murmured words of congratulations to them, turned on his heel and stalked out. Phyllis followed him to his office.

"Get me some of the stuff and notes on the dosages they administered," he ordered.

"Certainly," she said. "But why didn't you ask—Dr. Murt, you aren't going to try it on yourself?"

"Why not?" he barked hoarsely.

"It'll be weeks before we can determine if it's safe," she protested, horrified.