|Publication date||26 December 2007|
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Dark River is the second book of the Power of Three series.
The three children of Squirrelflight and Brambleclaw, grandchildren of the great leader Firestar, have thrived in their apprenticeships: Lionpaw's strength and energy serve him well as a warrior in training, Hollypaw's honesty and her understanding of The Warrior Code, and Jaypaw explores his mysterious powers and connection to StarClan as a medicine cat apprentice. With more experience comes both power and danger: Lionpaw makes a friend – and a discovery – that must be kept hidden; Jaypaw learns a secret that could benefit ThunderClan by damaging others; and Hollypaw knows something that could avert a battle, if she could convince the rest of her Clan. The three are torn apart as each discovers darkness: in themselves, in the Clans, and in the past. And, as conflict begins over what it means to be a warrior, rising tensions threaten to overflow, washing away the peace that has existed for many moons.