12 books in series

Seekers Universe

Seekers Universe is a 12-book series with 12 released primary works first released in 2008 with contributions by Erin Hunter.

The Quest Begins
Great Bear Lake
Smoke Mountain
The Last Wilderness
Fire in the Sky
Seekers #6: Spirits in the Stars
Island of Shadows
The Melting Sea
River of Lost Bears
Forest of Wolves
The Burning Horizon
The Longest Day