My favourite book that I have very fond memories of reading is Wolf Brothers, Written by Michelle Paver in 2004. The series got 6 books in total. Unfortunately since I read this when I was around 12-14 I fear that if I would read it today I would not enjoy it as it's targeted audience was ment for early teenagers or something. "Six thousand years ago, Evil stalks the land. According to legend, only twelve-year-old Torak and his wolf-cub companion can defeat it. Their journey together takes them through deep forests, across giant glaciers, and into dangers they never imagined. Torak and Wolf are terrified of their mission. But if they do not battle to save their world, who will?"