"Who pushed you in?"
"My employer—the man I was travelling with."
"What made him do it?"
"That is more than I can tell."
"Was he angry with you?"
"There had been no quarrel nor disagreement, and I supposed we were excellent friends."
"I wouldn't fancy such a friend," said Fred, dryly.
"The man must have had some motive," said Mr. Davis, who was a young lawyer.
"I can't think of any. I think he may have been insane," said Robert, to whom this had occurred as a possible solution of the problem.