"A lavish, cleverly plotted mystery in which an unforgettable heroine finds herself trapped in the past, from international bestselling author Elly Griffiths. Meet Ali Dawson: a police officer working on crimes so old, the joke goes, that they are not only cold but frozen. The team's office is in a grimy part of the city, yet Ali's work seems like a safe desk job. But what her friends--and even her beloved son--don't know is that the cold case team...