Hilda is sat in her tent, dwarfed by volumes of the Greater Fjords Wildlife Chronicles with a flashlight and her restless companion Twig, but Hildas not in the Fjords and it isnt raining. Hildas pitched a tent in her room and its been days since shes been out. In Hildas new adventure, she meets the Nisse: a mischievous but charismatic bunch of misfits who occupy a world beside but also somehow within our own, and where the rules of physics dont quite match up. Meanwhile, on the streets of Trolberg, a dark specter looms...