The Dark Urge

In a dark alley in Baldur's Gate, you accidentally fall into the sewers. When you get up, you feel dizzy, and the stairs leading up are broken. You walk through a huge, damp, disgusting sewer. Rats are running, slop and polluted water flows along a current unknown to you. Then after passing a you notice a door. On the door is an image of a skull and symbols that you did not see. You accidentally step on the slab, but nothing happens. Then, a little blood flows from your forehead after a hard fall. Blood falls on the slab and the door opens. You see a huge room with buildings, a long staircase leading down, in this room, goosebumps run down your skin and the cold makes your body shudder. Going down and walking along a thin stone bridge, you notice a passage. Going through the passage and another long staircase, you enter a terrifying tall door. In the bloody room, with a huge stone skull on the wall, there is an altar. You notice dark figure... it was The Dark Urge. "You."