"Let me ask you this question: Do you believe that these experiences are real?"

"Of course not!"

"Then, Madam, you are, by definition, sane; for insanity, in the final analysis, is the inability to distinguish the real from the unreal."

Paresi and the Captain ran aft together, and together they stopped four paces away from the bulging blackness.

"Johnny!" The Captain's voice cracked with the agonized effort of his cry. He stepped to the black wall, pounded it with the heel of his hand.

"He won't hear you," said Paresi bleakly. "Come back, Captain. Come back."

"Why him? Why Johnny? They've done everything they could to Johnny; you said so yourself!"

"Come back," Paresi said again, soothing. Then he spoke briskly: "Can't you see they're not doing anything to him? They're doing it to us!"

The Captain stood rigidly, staring at the featureless intrusion. He turned presently. "To us," he parroted. Then he stumbled blindly to the doctor, who put a firm hand on his biceps and walked with him to the forward acceleration couch.

The Captain sat down heavily with his back to this new invasion. Paresi stood by him reflectively, then walked silently to Hoskins.