The latest addition to the best-selling children’s series finds third-grader Robert making a successful presentation on George Washington, complete with white wig and false teeth; taking a fun ski vacation with his family (where the false teeth mysteriously reappear and even start talking, thanks to a walkie-talkie); and worrying about an impending move. Upon his return to school, he investigates the disappearance of Sally the snake from the classroom. Has she been kidnapped? Clues lead Robert and his friend Paul to the school’s dark basement, where they discover a surprising solution to the mystery. As always, Barbara Seuling’s easygoing, conversational style and Paul Brewer’s amusing drawings portray the adventures of this imperfect but appealing child in an encouraging manner perfectly tuned to the needs and interests of young readers.