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The Ice Queen has cast a spell on Erkenwald, separating the Fur and Feather Tribes and making the third – the Tusk Tribe – the enemy of both. Eager to secure her position by gaining eternal life, the Ice Queen is consuming the voices of the Erkenwald people. There seems little anyone can do until three children – Eska, Flint and Blu – come together. With help from 'the wild', they set off on a quest to find the legendary 'Frost Horn' and the magical 'Sky Song' that will free Erkenwald from the Ice Queen's control.