Oh, Play That Thing is a fast-moving picaresque sequel to Roddy Doyle"s novel about the Irish War of Independence and Civil War, A Star Called Henry. On the run from his former commanders, IRA assassin Henry ends up in the USA and copes indifferently with the gang-dominated New York of the early 1920s, and the worlds of Chicago jazz and the migrant workers of the Depression. Henry is a charming chancer, and a survivor, but this does not mean that he has an especially nice time for more than moments--his own ruthless past continually returns to haunt him. Doyle does a nice line in memorable unpleasant images--a bunch of homing pigeons swollen and dying from bathtub gin; a wooden leg smouldering unnoticed from closeness to a campfire. There"s also a strong sense of the changing language of immigrants trying to belong; this is, among other things, the story of how his Irish hero learns to think and speak in the American vein. The vignettes of real people--notably Henry"s friend the young Louis Armstrong--are more than just decoration. In the Depression chapters, Doyle writes powerfully about the way folklore grows up. In places, this is a jerkily structured book, but it is always a highly intelligent one. --Roz Kaveney