"What do you know about blowing up a boathouse?" asked Carl.
"I don't know much about doing the job. But I saw one blown up not long ago, and—"
"And what?" came eagerly from Ham and Carl.
"And I know you two boys did the job," finished Kiddy Leech, significantly.
CHAPTER XVI
AN EVIL COMPACT
For the next moment Ham Spink and Carl Dudder stared at the tramp in amazement not unmixed with terror.
"You—er—you saw us?" faltered Ham, at length.
"I did."
"You were mistaken," put in Carl. "You—"