Dorn's bloody path

 is a companion quest in Baldur's Gate II: Shadows of Amn.

Assassination of Bollard Firejaw

 * 1) Enter the High Hall of the Radiant Heart.
 * 2) Interrupt the wedding.
 * 3) Assassinate Bollard Firejaw.

Assassination of Guardian Trepfen

 * 1) Head to the Temple of Helm in Athkatla's Temple District.
 * 2) Talk to Guardian Telwyn, or kill him.
 * 3) Head to the Helmite Camp.
 * 4) Kill Guardian Telwyn, Hokkney of Tyr and their guards.

Ambush by Traggor the Hammer

 * 1) Travel anywhere and get ambushed by Traggor the Hammer and his friends Big Mordim, Wagner, Simon and Garfunkle.
 * 2) Slay the paladins.
 * 3) Wait for Azothet's apparition and talk with her.
 * 4) Talk with Ur-Gothoz.

Betraying the devil
...
 * 1) Travel to the Resurrection Gorge.

Appearances
appears only in Baldur's Gate II: Enhanced Edition.