"Your return to your own time and place."

"And if I don't cooperate with you?"

"Guess when and where else we could send you," Walter said.

Benson dropped his cigarette and tramped it.

"Exactly the same time and place?" he asked.

"Well, the structure of space-time demands...." Paula began.

"The spatio-temporal displacement field is capable of identifying that spot—" Gregory pointed to a ten-foot circle in front of a bank of sleek-cabineted, dial-studded machines "—with any set of space-time coordinates in the universe. However, to avoid disruption of the structure of space-time, we must return you to approximately the same point in space-time."

Benson nodded again, this time at the confirmation of his earlier suspicion. Well, while he was alive, he still had a chance.

"All right; tell me exactly what you want me to do."