He watched the pair, and saw them disappear behind some bare bushes which fringed the shore of the island.
"Roger, I think we ought to try to find out something about those fellows."
"I think so myself."
"If those are the rascals who robbed the Rockville railroad station, we ought to try to capture them," said Henshaw.
"How can we do that?" asked Messmer. "We are not armed."
"Let us follow them up anyway," said Dave.
This was agreed to by all on board the Snowbird, and in a few minutes the craft was run close to the shore and the sail was lowered.
"I am going to arm myself," said Roger, and suited the action to the word by picking up a heavy stick that lay handy. Seeing this, the others also procured sticks, and thus armed, all made their way to the spot where the two men had last been seen.
"Here are their tracks in the snow," said Dave, pointing to the drift which the wind had swept up from the river. "It will be easy enough to follow their tracks."
"We had better go slow and make no noise," cautioned Roger. "If they hear us they'll be on guard and may run away."