Nuala Anne McGrail and her adoring husband Dermont Coyne are at it again in Father Greeley's supremely popular Irish mystery series. At an international music festival in Milan, Nuala, in her guise as an international singing star, meets Seamus Costelloe and his family. Nuala quickly sees with her second sight (Nuala is fey in the Irish sense) that Mr Costelloe, a sinister Chicago tough guy, is doomed. She takes it upon herself to do something to save him, which gets her into a whole pack of trouble. Meanwhile Dermot is trying to solve the hundred-year-old mystery of who started the Haymarket Riot, which tore Chicago apart. The talented Father Greeley, with his enormous story-telling skill, his knowledge of Chicago, and his mastery of the mystery form, combines two seperate tales in two different eras to give the reader one tantalizing experience.