Principal Wagner confidently deals with a faculty washroom crisis, a psychic parrot, and a terrorizing gerbil, but when sixty-five erasers go missing, he enlists the help of the school's best problem solver and locator of lost items, twelve-year-old Lyle Williams, aka Mudshark.

Just as Hedgehog is entering her winter nest for a long nap, a falling apple gets stuck on her spiny back, and her friends' suggestions only lead to more trouble until Goat finds the perfect solution.

"Hacer una máquina voladora puede ser frustrante, pero una socia y un poco de paciencia es justo lo que podría hacer que el invento de Jabari despegue."-- Jabari is making a flying machine all by himself, but when it doesn't work the way he imagined, he learns about perseverance and problem-solving.

What do you do with a problem? Especially one that follows you around and doesn't seem to be going away? Do you worry about it? Ignore it? Do you run and hide from it? This is the story of a persistent problem and the child who isn't so sure what to make of it. The longer the problem is avoided, the bigger it seems to get. But when the child finally musters up the courage to face it, the problem turns out to be something quite different than it appeared....