From Diablo Wiki
- From the Quest Selection screen take quest No. 4. Reign of the Black King > The Royal Crypts.
- Take the waypoint from Tristram to Cathedral, level 3
- Work your way down to through level 4 to The Royal Crypts
- Make your way to the back of the Crypts to the four pillars. No need to click the ghostly sword to play the scripted scene.