"Don't you believe it," retorted Sam. "They're up to some game, you can bet. I wonder if we can't get wise to what it is."
Cautiously they drew nearer to the window. They found it was open a crack.
"Will it make much of an explosion?" asked Ed Simpson.
"Hardly any," replied Higley. "Only a puff and lots of smoke, but it will leave its mark all right, and I guess those fresh friends of Jack Ranger's will laugh on the other corner of their mouths."
"I'd like to get even with them before the term closes," put in
Adrian.
"We'll do it all right," went on Ed.
"Don't be too sure of that," whispered Jack.
It did not require much effort on the part of Jack and Sam to understand what the three conspirators were up to. Their conversation, which floated through the opened window, and their references to certain localities put the two listeners in possession of the whole scheme.
"Well, if that isn't the limit," said Jack in a whisper. "I wouldn't believe they'd dare to do it."
"How can we foil their plans?" asked Sam.