This is the second volume (don't know why Goodreads says it's #6) in the Tros trilogy. The first volume, Tros of Samothrace engaged on several levels: good action, exotic adventure, and some ideas from theosophy worked into the druidic philosophy of pre-Roman Britain. It also had some accurate sketches of people such as Caesar and Cato the Younger. This second volume, Purple Pirate, doesn't match up. The terrible title comes from Tros's purple cloak he wears in battle--like Caesar's red cloak that identified him on the battlefield as a rallying point and a target. Otherwise, few ideas permeate the text; it's a series of long, long discussions punctuated with the occasional sea battle. The descriptions and characterizations of Cleopatra and Cassius, meanwhile, barely register. And while Mundy does his usual good job of providing historical detail to Roman life and seafaring, his invention for this story is an outlandish failure. That is, the creation of a version of Cleopatra's real life half sister, Arsinoe has her in this Mundy version installing a double on the throne of Cyprus, while the real Arsinoe seeks anonymity and a new hidden life as Tros's wife. All that becomes a bit difficult, however, when the real Arsinoe decides to clad herself in shiny new armor and take on a new name, Hero. It just might be that a woman clad in new armor calling herself Hero just might draw some attention. And then there is the story. I don't know what story actually exists. Tros and Hero boat around Alexandria and the Egyptian coast after fleeing Cyprus and then make a trip to Rome. Everything ends with a sea battle in Alexandria. Cleopatra is saved and Tros has made an ally, at least a partial ally, out of Marc Antony. And then? . . . nothing. There is a third book in the series, Cleopatra. I'll hope it is better.