Mudshark — Gary Paulsen

Mudshark is the go-to guy for any mysteries that need solving. Lost your shoe? Can't find your homework? Ask Mudshark. That is, until the Psychic Parrot takes up residence in the school library and threatens to overturn Mudshark's position as the guy who knows all the answers. The word in school is that the parrot can out-think Mudshark. And right now, the school needs someone who's good at solving problems. There's an escaped gerbil running rampant, an emergency in the faculty restroom, and all the erasers are disappearing from the classrooms.

When Mudshark solves the mystery of who's stealing the erasers, he discovers the culprit has the best of intentions. Now he has to think of a way to prevent the Psychic Parrot from revealing the eraser-thief's identity. With a bit of misdirection and a lot of quick thinking, Mudshark restores order to the chaos . . . just for the moment.