One day the Spanish ambassador moves into the Parisian house next door to Miss Clavel, Madeline, and her 11 classmates. And, His Excellency has a boy! Pepito, as he is named, is not just any boy: according to Madeline, he is a "bad hat"--for starters, he's equipped with an irksome slingshot, he "ghosts," and he boasts. And when Miss Clavel gives him a box of tools to function as an "outlet for his energy," he makes a guillotine for the cook's chickens....