Young Roman soldier Titus is stationed in Britain just after Boadicea's rebellion, where he belongs to the mysterious and erotic Mithras cult. The sects rites grow more and more extreme, until Titus realises that he may be required to betray his secret lover, the Celtic druid Coll, who is himself a follower of the Old Ways of the Britons. A historical military fantasy set against the dramatic background of Rome's conquest of Ancient Britain, Legion of Lust features battlefields, secret cults and heart-rending gay romance alongside the raunchiest sex imaginable, all in the untamed wilderness of Ancient Britain.