At eleven years old, Arthur good has what is called Acute Pareidolia, An amazing gift that lets him see the hidden things inside everyday objects. His gift has revealed a hidden world that coexists alongside this one. After Arthur answers a help wanted sign that only someone with his ability could have seen. Taking on this unusual job changes Arthur' s life forever. Working at Hagedell Castle for Sir William Elden, he must try to remove a family curse, Unfortunately, becoming involved in a centuries old feud with an immortal king. Helped by a new friend, Penny Black, blind girl who has acute Audio Pareidolia, they work together to solve the clues that will reveal doorways into another world.