The Polar Bear Explorers' Club (Polar Bear Explorers' Club, Bk. 1)

Stella Starflake Pearl knows without a doubt that she was born to be an adventurer. It's too bad girls are forbidden from becoming explorers. But Stella's father, Felix, has never been one to play by the rules.

Leaving behind her pet polar bear, Gruff, and beloved unicorn, Magic, Stella sets off with Felix on an expedition to the snowy Icelands. There, Stella plans to prove herself as a junior explorer, worthy of membership in the Polar Bear Explorers' Club. So when Stella and three other junior explorers are separated from the rest of their expedition, she has the perfect opportunity. Can they explore the frozen wilderness and live to tell the tale?