They could see the other "shinning" up the sloping plank, as any athletic boy would be apt to do, without any particular trouble.

Now he had reached the window, and Thad held his breath in suspense.

He sighed as he heard a slight squeaking sound.

Evidently the sash which was supposed to be fastened every night through ordinary prudence, had given way to his hand, when he exerted some pressure.
"He's going in, Hugh!" Thad observed, again laying a quivering hand on the arm of his comrade, and then following these words with a low exclamation of startled wonder: "Oh! look there, what's that queer glow mean ?" Hugh understood readily enough.
"Why, he's got one of those little handy electric torches, you see, and is using it so as to get his bearings inside the building." "Guess you're right, Hugh," admitted the other; "and there, he's crawling over the sill now, as sure as anything.

Oh! the skunk, what can he be up to ?" "We'll try and find out," said Hugh, with his usual promptness.