The relentless cycle of violence and retribution follows Palestinian detective Omar Yussef to New York City, where he must deliver a speech at the U.N. on schooling in the Palestinian refugee camps, in Rees's excellent fourth mystery (after 2009's The Samaritan's Secret
). When Yussef's son, Ala, is arrested after a decapitated body is found in Ala's Brooklyn apartment, Yussef's search for the real killer leads him from Atlantic Avenue to Coney Island and back to the U.N. Secretariat. In the process, he discovers that he's not quite the cosmopolitan man he thought himself to be, a realization shared by many Arab immigrants in the story. In truth, the residents of Little Palestine are caught between its subterranean mosques and the lure of Manhattan, where forbidden pleasures are ready for the plucking. Yussef remains reliably human and compassionate toward human fallibility, while raging openly at the corruption of his own leaders. (Feb.)