After leaving the Blizzard Tundra and finding a strange young girl in a tree, Calvin and his friends find themselves trapped underground by Trix, the goddess of... well, tricks. Now Calvin, Austin, Morgan, Lucien, Alex, and their new friend must find their way out within 36 hours before they perish. These books are kind of like Percy Jackson, only I created my own pantheon. Something even Rick Riordan couldn't dream up (or maybe he could).