Not all goblins are bad.But thanks to a mask that allows him to appear human, Ben isn't spending much time as a goblin anymore. Released from distrustful glances and prejudiced librarians, Ben luxuriates in his freedom, spending most of his time in the library, a place he can no longer go as a goblin.His newly peaceful life is soon broken, though, when an unknown goblin arrives in Saint Louis, causing a stir with the Green Watch. When Ben discovers the identity of the goblin, he's forced to make a decision: to give him a chance or to treat him with the same distrust that Ben was always shown.His friends' lives, and his own, hang in the balance.