ISBN-13: 9781508872726 / Angielski / Miękka / 2015 / 130 str.
Ruby Knight is stubborn. She can't help it. Unfortunately, it gets her wrapped up in her uncle's work as a detective. A murder, an unusual best friend, and a criminal keep Ruby running through the streets of Chicago, looking for an answer. But things were different in the 1940's. With little evidence, and little time, Ruby must solve the puzzle even the police didn't dare touch.