Showing Crater Lake: Battle for Wizard Island by Steve Westover

While visiting his crazy Uncle Bart at Crater Lake National Park, thirteen-year-old Ethan’s world collapses when all the adults at Crater Lake disappear, including his parents. Now Ethan must rally his new friends and decipher the legends of Crater Lake to find the key to rescuing his parents from their earthen prison before he’s captured too and their captivity becomes permanent.