Once upon a Crime (Sisters Grimm Series #4) by Michael Buckley, Peter Ferguson (Illustrator)

HARDCOBER BOOK. In the long-awaited fourth book in the New York Times best-selling series, the Grimms take on New York City! Surprises abound for Sabrina and Daphne Grimm, fairytale detectives extraordinaire. When they venture into the big city, they stumble upon a murder, face betrayal by a friend, and discover an amazing secret about their mother, Veronica. Sabrina just wants to be normal-no detecting, no dangerous escapes, and especially no Everafters. Unfortunately, New York City is a hiding spot for many famous fairytale folk. And there's a murderer in their midst! The girls and their friends must figure out who killed Puck's father, King Oberon, while coming to terms with their mother's secret life.