Seekers is a series of books by Erin Hunter, author of the wildly popular Warrior Cats series, chronicling the lives of four bears as they journey across North America to the Place of Everlasting Ice in order to fulfill the vague command passed down to them by their ancestors, "Save the Wild." Like its predecessor, Seekers is a regular occupant of the bestseller list. There are currently six books in the series, not counting the manga. There are also at least two more manga, and another series of (presumably) six books, in store.
This series provides examples of:
Action Girl: Lusa becomes this after going into the wild and meeting Toklo and Ujurak. Kallik also is this.
Archnemesis Dad: Chogan in Toklo's Story and Forest Of Wolves. He's also the Big Bear who drove Toklo and his family out of the forest.
The Atoner: Toklo. After Tobi's death in the first book, he allows Ujurak and later Lusa to follow him, as he feels guilty about having not taken better care of his brother. (However, Tobi probably would have died no matter what.)
Obviously averted, except for when a rival bear attacks.
Played straight with Nanulak, though, who tricked the other bears into saying that his family abandoned him and tried to make Toklo kill his father, who had been trying to find his son. He is also the most irredeemable character in the series.