The Shivering Isles is the first expansion pack for the Elder Scrolls IV. In it players will be able to explore a new plane of Oblivion, Sheogorath, with your existing character. The Realm of Sheogorath is a split world with two sides, Mania and Dementia, which represents the two personalities of the god. His world adds in new villains, Flesh Atronachs, skeltal Shambles and amphibious Grummites will attack players as they discover new spells, items and push through dungeons. The expansion pack is said to have over thirty hours of additional gameplay. Fans of the series can pick it up this spring for the Xbox 360 and PCs.