Pray at an urn inside the Temple of Growth. ( -449, 49, -857 ) Copy/waypoint -449, 49, -857
The praying urns will only spawn when the Tunarian Templars in the temple are present. This means that you must either sneak inside and pray quickly or pray while fighting. Do not kill the Templars!
Return to the altar in the Tower of Purity. ( -129, 72, -972 ) Copy/waypoint -129, 72, -972
Go to the library and inspect a book on one of the tables. ( -395, 48, -949 ) Copy/waypoint -395, 48, -949
This is a random book among the many, called "The recent history of Felwithe".
Do not kill the librarians, as you will need them for the next step.
Kill smiths ( -384, 46, -748 ) Copy/waypoint -384, 46, -748, one at a time, until you get:
instructions
the hilt
the blade
the blade sheath
Return to the altar in the Tower of Purity.
Inspect the urn at the center of the Pedestal of Purity ( -679, 85, -1158 ) Copy/waypoint -679, 85, -1158 to start ring event. The urn takes a bit to start the event.
You have to kill 3 waves consisting of several non-linked elemental mobs each:
A discussion page exists which may contain more information