Ireland. AD 672. When news reaches Colgú King of Muman that his betrothed Princess Gelgéis has disappeared Fidelma with her trusted companions Eadulf and Enda enter the hostile kingdom of Laigin in search of the truth. But the warnings of demonic shapeshifters and evil lurking in the mountains must be taken seriously. Are there brigands stealing gold and silver from the ancient mines? And are rumours of a war between the kingdoms of Laigin and Muman to be believed? As Fidelma searches for answers she must do everything in her power to avoid danger in a land where no one is to be trusted…

Part of the The Sister Fidelma Mystery Series series.