This is book 9 in the Lin Coffin series by USA Today Bestselling Author J A Whiting. The main mystery is solved in each book but you will enjoy the stories more if they are read in order. When Lin Coffin and her cousin, Viv, visit a deserted island off the coast of Nantucket, a ghost makes an unexpected appearance asking Lin for help. Between trying to learn what the ghost needs from them and discovering the strange history of the island, the cousins are stymied at every turn. As they work to solve the mystery surrounding the ghost’s identity and his cause of death, Viv discovers something surprising and unforeseen that changes the way they gather the clues. Will Lin and Viv be able to give the spirit what he needs in order for him to finally rest in peace? This story has ghosts and some mild paranormal elements.