Twelve-year-old Josh Reynolds didn’t think he’d be spending his summer vacation going to lighthouses. Then again, he didn’t think he’d become a ghost hunter either. When he and his family left Colorado to visit an uncle in Michigan whom Josh can barely remember and explore lighthouses, he is less than thrilled. But when his parents leave him there, Josh’s summer begins to heat up. He meets two new friends, and together, they explore the old lighthouse that is said to be haunted. Join Josh as he discovers he has a somewhat unwelcome “gift,” and he and his friends make other ghostly discoveries as well—discoveries that lead all the way back to the Great Chicago Fire.