An explosive powder called "atmos" leads to a frictional relationship between Conor, who believes it will be used to destroy them all, and Vorgeen, the leader of a neighbouring tribe who wants to create even more deadly weapons in order to protect his people.
A long-held secret threatens to destroy them all when Conor discovers that Caitlin has been conversing with Roman soldiers and that a greedy Roman historian will go to any length to retrieve a precious scroll in her possession.
When the Druid "Father" declares that the head of each village must symbolically wed a Druid novice, Conor nervously prepares for his marriage. But a warning from a surprising source will lead him from wedded bliss to a face-to-face battle with his worst enemy
In the midst of fractious inter-tribal sparring at Queen Diana's castle, a rival warlord makes one demand before declaring war on everyone else: he wants Conor's latest rescue, a beautiful and mute maiden, to replace his murdered wife.