"Sure," agreed Hugh. "Who do you think that man was?"
"I don't know, but he did act sort of queer I thought. Probably Harold was wise to arrest him."
"What'll they do with him?"
"Oh, lock him up probably," said Bob carelessly. "I guess some officer will question him and if he's all right he'll be let go; otherwise I don't know what will happen to him."
"How about the canoe?" suggested Hugh.
"You mean, shall we go on to the boathouse?"
"Yes."
"The other end of the bridge is probably guarded too," said Bob. "We would be held up there and maybe be arrested ourselves." He peered earnestly down the track which led over the bridge to Rivertown on the opposite bank. Suddenly he started violently and clutched Hugh by the arm.
"What's that?" he gasped in a terror-stricken voice.