This book begins in the Thracian village to which Spartacus has returned after escaping from life as an auxiliary in the Roman army. Jealous of his attachment to Ariadne, a Dionysian priestess, the Thracian king betrays Spartacus to the Romans who take him, along with Ariadne, into captivity and to the school of gladiators at Capua. Against the background of the unbelievable brutality of gladiatorial life, Spartacus and Crixus the Gaul plan the audacious overthrow of their Roman masters. They escape and flee to Vesuvius, where they recruit and train an army of escaped slaves that will have to face the conquerors of the known world, the most successful deadly army in all of history in a battle that will set in motion the legend that is Spartacus.