Skin Taker by Michelle Paver

Run wild with Wolf Brother in a Stone Age world we all want to be a part of with million-copy-selling author, Michelle Paver. Danger, magic and non stop adventure await Torak, Renn and Wolf in a devastating Dark Time that threatens everything they know. The Clans will be tested as never before, as they battle to find ways to survive and thrive in their beloved Forest. In the Dark Time of midwinter, disaster strikes the Forest. Chaos rules. Bears woken from their dens prowl the shadowy valleys. Desperate clans battle for survival. Only demons thrive. With their world in turmoil, Torak, Renn and Wolf are tested as never before. And as a new evil haunts the devastated land, Torak must risk his sanity, his life and even his souls to save everything he loves... Skin Taker carries you back to the Stone Age, drawing you deeper into the astonishing adventure which began with Wolf Brother and has captivated millions of readers.