Shortly after a breakfast generously supplied with pancakes, Nate the Great got an urgent call from Annie. " I lost a picture," said Annie. " Can you help me find it?" "Of course, " said Nate. " I have found lost balloons, books, slippers, chickens. Even a lost goldfish. Now I , Nate the Great, will find a lost picture." " Oh, good," Annie said. Nate, with the cool detachment of a Sam Spade, immediately plunges into his new and baffling case. Getting all the facts, asking the right questions, narrowing down the suspects, Nate , the boy detective who " likes to work alone," solves the mystery and tracks down the culprit. In the process he also discovers the whereabouts of Super Hex, the missing cat.