Glaciers! Snow monsters! Derflootle! The twins are about to get iced.Edgar and Ellen’s pursuit of their nemesis, Stephanie Knightleigh, leads them to Frsthaven, an Arctic village whose cheerful citizens and strange customs remind them of home. What makes this place a sugary sweet duplicate of Nod’s Limbs? The secret, alas, is upon the forbidden slopes of the Glggenheim, where dwells something that doesn’t take kindly to being disturbed.