Dav Pilkey 's first book in the phenomenally successful Captain Underpants illustrated chapter book series, perfectly suited for reluctant readers and especially boys.

George and Harold are best friends. Much to the dismay of Mr. Krupp, the principal of Jerome Horowitz Elementary School, everything includes circulating their Captain Underpants comic books and playing practical jokes. The boys manage to hypnotize Mr. Krupp and make him think he's Captain Underpants. He rushes off to fight crime. After some amazing adventures, Mr. Krupp hits his head and becomes Mr. Krupp again.

But mysteriously, whenever someone snaps his fingers, Mr. Krupp turns once again into Captain Underpants.

El primer libro de la exitosa serie El Capitan Calzoncillos! Dav Pilkey, prestigioso autor e ilustrador galardonado con el premio Caldecott, les ofrece a los jovenes lectores una inolvidable aventura, increiblemente divertida, llena de accion y facil de leer. En todas las paginas de Las aventuras del Capitan Calzancillos encontraran divertidos dibujos, que hacen que este libro lo puedan disfrutar tanto los lectores avanzados como los que estan empezando a leer. Al igual que el resto de las obras humoristicas de Pilkey, este libro mantendra entrenidos durante horas incluso a los menos aficionados a la lectura.