Excerpt: "Danny Chatterton came up the street whistling a merry tune, while Don Scott lay under an apple-tree back of his father’s house, munching an apple and scowling blackly, although the September afternoon was pleasant and sunny enough to put any boy in an agreeable humor. Judging by the sour expression on Don’s face one might never have fancied the half-devoured apple in his hand was sweet. Spying the boy beneath the tree, Danny stopped, leaned on the fence, and called: "Hullo, Scotty! What you dud-dud-dud-doing?""