Polar Meltdown

"On this mission ... Ben and Zoe are sent to an Alaskan village to investigate the death of a polar bear. The twins' mission takes an unexpected turn when they learn that the bear's orphaned cub is lost and alone somewhere out in the frozen wilderness. Ben and Zoe are used to undertaking dangerous missions, but between the frigid temperatures and hungry polar bears on the prowl, the stakes have never been higher."--Page 4 of cover