"The check's written." Greg handed it over. "It's dated ahead. I can stop payment if you don't do what you promise. And secrecy is important. My wife doesn't know what I'm doing."

"Marta," Dr. Haskett called. A girl from the front office came into the laboratory, and in bored fashion pulled a soiled white robe over her street dress.

"Lie down here." Dr. Haskett shoved two tables together to provide a large, flat surface, and Marta shoved home the lock on the single door leading out of the room. "But sign this release, first. And undress. You prefer intravenous anaesthesia, I suppose?"

"There's not much risk?" Greg asked, his perspiring fingers slipping as he tried to unknot his tie. "Not much risk that you'll fail to make good ... a good transplantation?"

"I guarantee that part of it," Dr. Haskett said, opening a case and withdrawing instruments. "The only risk lies in the danger that it will grow too fast in six months."

"I won't give it a chance. My wife gets sent to Mars next week. I'm going to ask for a special check and get myself sent aboard the same ship with her. I know the right people."

Marta laughed openly. Dr. Haskett shot a glare in her direction, then looked calculatingly at Greg.

"You're talking like a child," he said. "If I implant cancerous tissue in your body, you can't submit to a check for at least six months. The examiners would find the scars of the operation. There are laws against what you want me to do for you."

Greg stared at the tie he had finally pulled loose. "But I can't wait six months," he said helplessly. "If Dora gets sent to Mars alone, you know what will happen as well as I do. Deported people are automatically divorced from their husbands and wives on Earth. They have to marry again as soon as possible on Mars. The women need someone to support them and their kids, the men need the women to run the houses up there...."

The woman straightened her face with an effort, took off the white robe, and tossed it on the floor. Then she unlocked the door and returned to her office. Dr. Haskett turned his back on Greg, saying, "I'm afraid there's nothing I can do for you, sir."