Arthur M. Winfield, The Rover Boys in New York (1913)
“ But I am sure of one thing," went on Dick, decidedly. "Dad didn't meet with any accident. His disappearance is due to Crabtree, and, likely, to some of his other enemies." "Well, that clears up one corner of the mystery," said Sam. "But it doesn't get us any nearer to finding dad." "I think it does, Sam. If we can locate Crabtree, I think we can locate father." "But how are we going to locate Crabtree?" "I don't know. But if we keep our eyes and ears open we may learn something. In the morning some of us can call on those brokers and see what they have to say," continued the big brother. ”
