Wrath of the Storm

by Jennifer A. Nielsen

Nicolas Calva has Caesar's magic bulla, the Malice of Mars, and he's hidden the dangerous Jupiter Stone, but he still has to find a way to defeat The Mistress, a dragon who contains the soul of the vestalis Atroxia, and who hates Rome, and save his mother and friends, and maybe even the Empire itself--and he's troubled by his sneaking sympathy for Atroxia, who was unjustly condemned.