Head through the zone and solve the various riddles as you go. Don't let one group get to far ahead of another, try to stay so one group solves a riddle then waits for the other to solve the riddle.
Eventualy the two groups will rejoin each other in a large chamber.
Clear the chamber and after 10 or so waves of x2 groups the named, Anvilpaw, will spawn in his own mini chamber
To defeat Anvilpaw, there are 4 idols in this large chamber, one person needs to be next to each. Throughout the fight, the mob will emote about drawing power from the idols. At this time the 4 people manning the idols need to click the idol and shut it off.
It is possible to defeat Anvilpaw without deactivating the idols.