Sewers Underneath Baldur's Gate/Undercellar

• Accessible throughout Baldur's Gate are three sewer sections and the hidden undercellar, which is accessible through the sewers and through the Blushing Mermaid Tavern in the northeast sector of Baldur's Gate.
  

• There is an ogre mage and some carrion crawlers causing havoc in the sewers underneath the east, middle sector of Baldur's Gate. Before you clean them out, talk to Scar in the southwest sector of the city to initiate the related quest (you'll have to solve the Seven Suns quests first). There are also phase spiders in the sewers. Bodies are strewn throughout the walls in the western corridor of the eastern sewers along with assorted treasure, including cursed oil of speed and a potion of magic protection.
  

  Undercellar. You can get the Cloak of Balduran in the SE section.

• Don't let the green slime get close to you - a failed saving throw will result in the destruction of your characters. Use a fireball or two to quickly clear out infested areas.
  

• Ratchild and his merry band of kobold commandos will try to ambush you in one of the main intersections in the western sewers. Equipped with dangerous arrows of fire, the kobold commandos can dish out punishment but can't take a hit themselves. Use your own arrows or a fireball to quickly take them down.
  

  The furthest west section of the Baldur's Gate sewers. Look out for the Phase Spiders' nest.

• Schlumpsha the Sewer King (50 hp), a mustard jelly, has a haphazard crew of Morlock-esque sewer folk that will attack you in the section of the sewers that is farthest west. The sewer folk consist of an ogrillon, an ogre, an xvart, and a ghoul.
  

• Quenash, who is in one of the corridors in the southeast section of the Undercellar, will give you the Cloak of Balduran if you tell her that Vail sent you to collect his cloak (after freeing Vail from his petrified state, in the middle sector in Baldur's Gate), and then that Vail offered you the cloak for rescuing him.
  

  The furthest east section of the Baldur's Gate sewers. You can find the Ogre Mage that Scar will ask you to take out in this area.

• For information on the role of the Undercellar in chapter seven, see the discussion under sector 51.