Peter Nimble and His Fantastic Eyes (Peter Nimble Adventure, 1) by Jonathan Auxier

One fateful afternoon, Peter steals a box from a mysterious traveling haberdasher—a box that contains three pairs of magical eyes. When he tries the first pair, he is instantly transported to a hidden island where he is presented with a special quest: to travel to the dangerous Vanished Kingdom and rescue a people in need.

Along with his loyal sidekick—a knight who has been turned into an unfortunate combination of horse and cat—and the magic eyes, Peter embarks on an unforgettable, swashbuckling adventure to discover his true destiny.