School Library JournalGr 5–8—In 1877, Dark Street is a Diagon Alley. It sits between New York City and Faerie, open at midnight to New Yorkers and, after the Great Faerie War, firmly barred to Faerie by the Glass Gates. The vigilant Wizard of Dark Street tends its magical presence. By tradition, his niece, 12-year-old Oona Crate, is next in line to be his apprentice, but she has renounced her magical abilities because of an accident she once caused. Now she concentrates on detective work, which she must employ when her uncle vanishes right before naming his successor. Oona has a wide list of suspects to interrogate, including a witch, a blind man, a "Muggle" boy from New York, and obnoxious Isadora from across the street. Ably assisted by her talking raven and her Faerie servant, Oona sets out to prove that magic is no match for her powers of observation.