It begins, as all the best superhero stories do, with a tragic accident. When a runaway vacuum cleaner swallows an unsuspecting squirrel in the neighbor's yard, ten-year-old Flora Belle Buckman rushes to the rescue. Flora is a self-described cynic who reads comic books constantly, so she knows exactly what to do. But what she cannot predict is that the squirrel will wake up completely changed. Reborn as Ulysses, this ordinary backyard rodent suddenly possesses extraordinary powers. He can fly, he has super strength, and he can even type misspelled poetry on a typewriter. As Flora tries to protect her new superhero friend from her strict mother and the dangers of the world, she realizes that Ulysses is not the only one changing. Through hilarious mishaps and daring rescues, Flora discovers the true power of hope, friendship, and a capacious heart. Blending a laugh-out-loud story with fantastic comic-style illustrations, this brilliant adventure proves that unexpected miracles can happen exactly when you need them most.