What he did was characteristic of him. He had unconsciously taken two or three hurried steps across the room, and he turned and stood still.

"It is I who must go," he said.

"You are sure of that?" said Arbuthnot.

"We have never found it easy to understand each other," Tredennis answered, "though perhaps you have understood me better than I have understood you. You are quicker and more subtle than I am. I only seem able to see one thing at a time, and do one thing. I only see one thing now. It is better that I should go."

"You mean," said Arbuthnot, "better for me?"

Tredennis looked down at the floor.

"Yes," he answered.

A second or so of silence followed, in which Arbuthnot simply stood and looked at him. The utter uselessness of the effort he had made was borne in upon him in a manner which overpowered him.

"Then," he remarked at length, "if you are considering me, there seems nothing more to be said. Will you go and tell the professor that you are called away, or shall I?"