A Kirkus Reviews Best Book of the YearA Booklist Editor's Choice BookThis genre-bending YA novel follows a boy who finds a century-old diary written by a young woman in Nagasaki, Japan--and becomes haunted by her vengeful spirit. When Adam discovers a diary in his attic, he is enthralled by its account of a young woman's life in Nagasaki. A hundred years separate them, yet like Adam, she is caught between cultures, relationships, and heartbreak. She also writes of the ghosts that have begun to seek her out, which Adam dismisses as fantasy--until he begins to be haunted by her terrifying spirit. Unravelling the mystery of her identity--and the wrong done to her--seems to be the only way to save himself. This leads Adam to a home stay in Nagasaki, where he begins to reconnect to his heritage not only through Japanese language and culture, but also by connecting with long-lost family members. And then begins a race against time as Adam and his new crush, Jo, attempt to untangle a story that has rippled through generations . . .