Davidson felt about, and puzzled over it, and answered presently that he could feel it all right, but he couldn't see it.
"What do you see?" asked Wade. Davidson said he could see nothing but a lot of sand and broken-up shells. Wade gave him some other things to feel, telling him what they were, and watching him keenly.
"The ship is almost hull down," said Davidson presently, apropos of nothing.
"Never mind the ship," said Wade. "Listen to me, Davidson. Do you know what hallucination means?"
"Rather," said Davidson.
"Well, everything you see is hallucinatory."
"Bishop Berkeley," said Davidson.
"Don't mistake me," said Wade. "You are alive and in this room of Boyce's. But something has happened to your eyes. You cannot see; you can feel and hear, but not see. Do you follow me?"
"It seems to me that I see too much."
