Danica dela Torre, the “youngest sleuth” in the small Canadian town of Renley Crow, worries that her new neighbor and all-around smart kid Kennedy Fang might take all the good cases away from the Unofficial Official Renley Crow Detective Club, the business she began with her best friend, Jack Harrow. Instead, Kennedy enlists their services to determine whether his house is haunted after a crow delivers strange, floating letters, each with cryptic messages addressed to all three kids. Forbidden from meddling with “the Other Side” by her Tita Mary, Dani nevertheless follows the clues to identify the spirit behind the letters, working alongside trusty Jack and secretive Kennedy even as the ghostly phenomena increase in intensity. As the sleuths navigate working together, the letters prod them into confronting uncomfortable truths. Centered on a Filipino protagonist, Lucido’s series opener is at its best when exploring Dani’s familial complications, including her relationship with her increasingly absent parents. Though the supernatural mystery is initially intriguingly spooky and quite compelling, things peter out somewhat. Still, Dani and her friends possess a delightful, often humorous dynamic, bolstered by Cacao’s fine illustrations; the book lays a strong foundation for future installments. Kennedy is cued Asian, while Jack presents white in the artwork.