"Do you remember the ice-boat race we had with the Rockville cadets?" said Messmer.
"Yes, and the accident," replied Dave. "We don't want to run into anything again."
"I say, fellows, let us visit that cabin on the island!" cried Roger. "Maybe we'll find out something more about Pud Frodel and that other fellow."
The senator's son referred to a cabin located on a lonely island some distance from Oak Hall. Here it was that the lads had discovered the two robbers with whom Nick Jasniff had been associated, and had given to the authorities the information which had led to the rascals' capture.
"I'm willing to go," said Henshaw. "Only we can't stay on the island too long, for we'll have to get back before it gets too dark."
As the ice-boat swept along they passed quite a number of boys on skates. Presently they came to a crowd of six, all attired in neat semi-military uniforms.
"Hello, Oak Hall!" was the cry.
"Hello, Rockville!"
"Where are you going with that tub?"
"Looking for another Rockville boat to beat!" sang out Henshaw. How he had once won an ice-boat race against the military academy lads is already known to my old readers.
"Go along, we're going to build a boat that will
