A new hardcover in the Library Lover's mystery series from the New York Times bestselling author of On Borrowed Time . Small-town librarian Lindsey Norris must solve a murder and a missing person's case involving two reclusive brothers.NOT HIS BROTHER'S KEEPERDelivering books to the housebound residents of the Thumb Islands, just a short boat ride from the town of Briar Creek, library director Lindsey Norris has befriended two elderly brothers, Stewart and Peter Rosen. She enjoys visiting them in their treasure-filled, ramshackle Victorian on Star Island until she discovers that Peter has been killed and Stewart is missing. Now she's determined to solve a murder and find Stewart before he suffers his brother's fate.