The Quest Begins by Erin Hunter

"Don't hurt her," Ujurak pleaded. "Look at her. She's half starved -- she's no threat to us. Let her go, Toklo."
The black bear stopped struggling. Toklo looked back down at her. She was staring at him with enormous eyes.
"You're Toklo?" she said.
"Y-yes." he said.
The black bear scrammbled out from underneath him and got to her paws. "I'm Lusa," she said. "I've been looking for you." (293)

Lusa is a baby black bear cub living in the complete comfort of a Canadian zoo, being fed every day by keepers. Toklo is a grizzly bear cub who lives a completely different life nearby out in the wildnerness. Kallik is a polar bear cub who is crossing the melting ice with her mother and brother trying to reach land in time. What do these three bears have to do with each other and the shape-shifting companion? Find out by reading The Quest Begins by Erin Hunter, the author who brought readers the Warriors series about cats.

AMY