whereswaldo Missing person alert? 1987 kid's best-seller Question that signals a missing person alert Question from Martin Handford Kiddie lit question Book that makes you look 1987 children's best seller Question posed by a 1987 children's best seller Kid's book with a hidden character Popular children's book series ... whose protagonist is "hiding" in the circled letters Pepper missing? (Handford) Theme of this puzzle Question in some kids' books Popular seek-and-find series