Apparently, a new expansion for Bethesda's RPG The Elder Scrolls IV: Oblivion is coming our way. The expansion will be called Shivering Isles and the latest edition of PC Zone magazine reveals the first concrete details.

CVG covered this story and they explain that the expansion will offer 30 extra hours of new adventures, as well as some new quests and monsters and a touch of expanded "freefrom" gameplay. By the looks of it, an "omnious-looking gate" has been opened in Nibben Bay, and this portal leads to a torn realm -The Shivering Isles (hence the name).

This realm is ruled by Sheogorath, who is the god of madness and dementia. You will get to meet and "plough" through the trials of Shegorath, but in the end, you might be given the chance to defeat him. An exact release date was not announced, but it's hinted that it will come out in the second quarter of 2007.
The 177th issue of PC Zone is already out, so all you Oblivion fans out there might want to check it out because it features the first screenshots from the Shivering Isles expansion.

Taking into account that since its March 2006 release, The Elder Scrolls IV: Oblivion managed to sell more than 1.7 million copies both for Windows and Xbox 360, there are quite a lot of Oblivion fans out there and they will surely cough up the cash needed for purchasing PC Zone magazine. Some might say that the gaming magazine has hit it big with this material.