The story of a romance between Enrico Caruso and a Cuban woman, Aida Petrirena Cheng, as told by their illegitimate daughter, eyewitnesses and the lovers. Cuban-born Montero uses the actual visit of Caruso to Havana in 1920 -- and his brief disappearance after an explosion at the national theater -- as the jumping off point for her layered, richly imagined tale.  (CBA55, $13.00)