Soul Eater (Chronicles of Ancient Darkness Series #3)

It's winter, and Wolf, Torak's beloved pack-brother, has been captured by an unknown foe. In a desperate bid to rescue him, Torak and Renn must brave the frozen wilderness of the Far North. As they battle for survival amid howling blizzards and the ever-present menace of the great white bear, their friendship is tested to the breaking point, and Torak is forced to get closer to his enemies than ever before. “Compelling from first page to last.” — (starred review)