Reporter Irene Kelly matches wits with a killer who is giving her advance notice of his kills with riddles from Greek mythology. He signs himself Thanatos, as the Greeks called death, addresses her as Cassandra, the woman who told the truth but whom no one believed, and warns that Clio will be the first to die, a reference to the muse of history. The very same night a woman professor is murdered. By the author of Sweet Dreams, Irene.