Beautiful killer Gretchen Lowell tightens her grip on Detective Archie Sheridan in Let Me Go, New York Times bestseller Chelsea Cain’s newest nail-biter. Detective Archie Sheridan is about to receive a birthday present from the last person he ever wants to see again: Gretchen Lowell. The investigation into Jack Reynolds' drug enterprise is heating up and has Archie heading off to attend a masked Halloween party on Jack Reynolds' island, where Susan is a reluctant guest. But the next morning one of the guests is found murdered, and Archie quickly realizes that nothing is what it seems. Only one thing is clear: Gretchen is back, and she's been closer than anyone thinks. On Halloween Eve, with time running out, Archie will have to risk everything, and choose wisely whom to trust, if he and his loved ones are going to live through the night.