Cheevos can be found in H > Chronicles > River of Souls: Chains of Death
Main Quests and Bosses
Deliver the power to Plutonus
Walk up to the circle where Plutonus is (Red star on map above) and stand there while he does his big long speech.
Deliver the Soul Imprints to Alsbeth
Continue across the bridge to Alsbeth and stand near her to deliver the Soul Imprints.
There is quite a bit of chatter before the next boss arrives.
Be sure to right click Alsbeth and talk with her when asked to.
Note: If you walk to Alsbeth too quickly then it may not progress the quest properly. Go back out to the other side of the bridge and enter Alsbeths area again to progress the quest properly.
A level 70 player can easily kill this boss without having to worry about mechanics.
At 50% health Gaurath will fly up into the air and barrage the platform with purple circles. Keep moving to avoid them until he lands again then DPS him down.
At 10% health he will become immune and Alsbeth will come along to have a chat with him (and send him to Regulos!).
Speak with Alsbeth
Right click Alsbeth to talk with her.
Click Zereph to set him free and reveal to Alsbeth that it is you, an ascended! in disguise!
Escape through Zereph's Portal
Go through the portal that appears behind Zereph. This will take you back to the Chronicle entrance where you can loot another reward chest!
You will get small amounts of Order of Mathos notoriety for every mob you kill.
The chest can be found in many different locations throughout the River of Souls: Chains of Death Chronicle.
Chest Loots include: Random gear, and artifacts.