1) Once you arrive at the Sarn Encampment after your second Ascendancy Trial, talk with NPCs (check vendors!), proceed left next to Clarissa to the next area “The Toxic Conduits”.
In The Toxic Conduits, when you first enter the zone, whichever way you go will lead to “Doedre’s Cesspool”. Enter it and proceed further.

1a) In Doedre’s Cesspool, the only goal is to reach Doedre at the end. Click on the Loose Grate to enter her boss arena “The Cauldron”. Click on the valve, defeat Doedre and proceed through “Sewer Outlet”.

1b) Once there, you can choose where to go (Up or Down), I prefer going up here to “The Quay”. Down side leads to “The Grand Promenade”

2) The Quay is a zone with 2 objectives. One is picking up an “Ankh of Eternity” for Clarissa (in this same zone) and the other one is to continue to the next zone.
Travelling through the zone is best done by following the water first until you get to a small bridge with a big arch. Enter the small isolated area, clear the enemies and loot the Ankh from the sealed casket.

2a) Then, continue by following the water until you find another big arch and a boat, that way leads to the next area, while the other side (before the arch) leads to the “Resurrection Site”. Go to the Resurrection site now.

2b) Once you enter it, talk to Clarissa to start the event. Kill the spawning zombies and Tolman, then talk to Clarissa and go back to where the Arch was to proceed to the next area “The Grain Gate”.

3) In the Grain Gate, we again have multiple objectives. Find the Gemling Legionnaires, kill them and then find the next area. This one requires a bit of exploring as it has a lot of “tunnel” rooms.
Once you kill them, proceed North-East to the next area “The Imperial Fields”.

5) In Solaris Temple Level 1, we follow the carpet until we reach Level 2.
In Solaris Temple Level 2, we again follow the carpet until Boss Arena (“Portal”). Defeating this boss drops an item called “Sun Orb”. We now go back to town to talk to NPCs and pick up quest rewards.
Hargan gives a ring with resistances (important!)
Maramoa gives a book of skill (+1 passive)
Clarissa gives a book of skill (+1 passive +2 refunds)
After that, head back to Toxic Conduits via Waypoint and head down instead of up to the next zone “The Grand Promenade”.

7) In The Bath House we have multiple objectives to do. First, head in one direction until you either find a Lab Trial, Unique Boss Hector (loot wings of Vastiri), The High Gardens (Generally North-West) or The Lunaris Concourse (Generally North-East). Lab Trial and Hector can spawn in different directions every time, but the two zones stay generally the same. Proceed to The High Gardens.

7a) In The High Gardens, we clear the area to the boss arena (The Pools of Terror), where we defeat Yugul and get its soul for the Pantheon. BE CAREFUL, this zone has A LOT of porcupines which explode on death and send their spikes flying! Once you defeat Yugul, talk to Sin to get the Soul of Yugul Pantheon point. Go back to town and talk to NPCs for the rewards.
Hargan gives a book of skill (+1 passive point) & a jewel. After that, go back to the bath house and proceed to the Lunaris Concourse.

8) The Lunaris Concourse has two directions to go in. Top left is the area “Lunaris Temple Level 1” where we need to go to grab “Moon Orb” and the right side (full east) to “The Harbour Bridge” which is the path to the ending of Act 8.
Proceed top left, grabbing a waypoint on the way.

9) In Lunaris Temple Level 1 we follow the carpet to Level 2, in a similar way to the Solaris Temple.
Once you get to Level 2, you need to follow the path from the stairs and proceed to the boss arena via portal.

9a) Kill the boss and loot the Moon Orb. Return to town and then via waypoint go to “The Lunaris Concourse”.

10) From The Lunaris Concourse Waypoint, go East to the Harbour Bridge and continue along the way until you find a door “The Sky Shrine”. Once you enter, click on the “Statue of the Sisters” and defeat both Solaris and Lunaris. After defeating them, talk to Sin to get both of their Souls for the Pantheon.
After you do that, proceed to the next area “The Blood Aqueduct”.