Penguin was an animus IceWing mentioned by Arctic in the prologue of Darkstalker (Legends) to have created the gift of diplomacy, a heated dome near the border of the Ice Kingdom. He may have also created three bracelets meant to get non-IceWings (NightWings in the case of the book) over the wall and keep them warm in the freezing temperatures, although this is not proven. He did not enchant the dome to build itself, as the dome was carved by other IceWings. He simply enchanted the dome to provide extra heat so that their guests from other tribes wouldn't be uncomfortable in the cold, or contract frostbite. However, he did not enchant the dome to be heat resistant, as shown by Arctic when he considers enchanting the dome to be protected from fire-breathing tribes.