Faith in the FallenG 15

To earn this achievement you simply need to make the Archmage jump. Enter the Tower District and head to the Fallen Tower Tavern. At the top of the tower you will see falling NPCs. Jump into the blue column of light and the achievement will unlock.

In the Tower District (which is VERY early in the game), go to this location above the tavern..


then take a leap of faith and jump in! For those that prefer video..