This is the final task in the final quest of the Shroud of Souls quest line. This questline picks up from the Cloaked Ascendancy questline, and you must have completed 'Chapter 5: Ascendancy's End' in the Cloaked Ascendancy Campaign first. Chapter 5 unlocks when you have completed the 3 Confront Wizard tasks in the Cloaked Ascendancy Campaign Window.The Shroud of Souls entire quest line can be completed in an afternoon if you have a high enough character; in fact probably far less than an hour if you have a very high level character and stay focused on the quest line.
I played it first with my 14k DC(old level was 4k) and found it overall fairly easy, with just a few challenging parts.
If you're much lower like 10k or less, you could well find it challenging in many parts.
For the general walkthrough of the campaign, please view the spoiler below, which will contain some spoilers... many of the quests are quite straightforward.
*** Spoiler - click to reveal ***Quest #1. "The Dead and Defeated" starts with Sgt. Knox in Protector's Enclave.
*** Spoiler - click to reveal ***A. Talk to Knox.
B. Go to Driftwood Tavern.(Don't forget to drink the ale 3 times while in Driftwood Tavern!)
C. Talk to Knox.
D. Go to River District.
E. Talk to Kavatos.
Quest #2. "River District Hauntings" starts with Kavatos in the River District.
*** Spoiler - click to reveal ***A. Talk to Kavatos.
B. Kill 12 Wraiths in several marked zones in River District, 3 of which are right near the main entrance to the zone.
C. Talk to Kavatos.
D. Talk to Quartermaster Hendricks.
E. Investigate a Crypt. (To investigate the Crypt, you might have to open the dig site with the Crypt map, as a previous point in the Cloaked Ascendancy Campaign could prevent progress if you used an already setup Crypt dig site. Play it safe, and activate your own Crypt site. That's what I did. If it works in an already setup site, PLEASE let me know!)
F. Once you're in the Crypt, clear it like normal, then talk to the Ghost.
G. Talk to Kavatos.
Quest #3. "The Crypt of Shadows" starts with Kavatos in the River District.
*** Spoiler - click to reveal ***A. Talk to Kavatos.
B. Talk to Quartermaster Hendricks.
C. Go to the Crypt in River District, it's near Guard Post Thracier in the top center of the River District, behind the building to the east. It's really hard to miss...
D. Enter the Crypt and talk to the Ghost.
E. You can get the other achievement here by doing the very easy bonus objectives..
F. Clear the Crypt.
G. Talk to Kavatos.
Quest #4. "Necromancer Consultancy" starts with Kavatos in River District.
*** Spoiler - click to reveal ***A. Talk to Kavatos.
B. Travel to Ebon Downs.
C. Talk to Doomguide Soulhearth.
D. Take the Phylactery right nearby.
E. "Use" the Phylactery from in your inventory.
Quest #5. "Death Wizards" given by the Phylactery in your inventory.
*** Spoiler - click to reveal ***A. "Use" the Phylactery.
B. Travel to the Dread Ring.
C. Collect 5 Black Gems from Red Wizards around the Dread Ring(the lower left side of the map is a good place to find them)
D. Get a Bone Focus from Telimon in the lower right side of the Dread Ring map, the Quarry region. She's all the way at the farthest right corner on the wood platform over a quarry.
E. "Use" the Phylactery in your inventory.
Quest #6. "The Cult of Orcus" given by the Phylactery in your inventory.
*** Spoiler - click to reveal ***A. "Use" the Phylactery.
B. Travel to Mantol-Derith.
C. Talk to Grazilaxx.
D. Enter the Demon Cult Caves behind Grazilaxx.
E. Clear the Caves and kill Dukathis.
F. Take the Orcus Talisman from the raised platform.
G. "Use" the Phylactery in your inventory.
Quest #7. "Descent into Shadow" given by the Phylactery in your inventory.
*** Spoiler - click to reveal ***Note: for this quest, you may have to "Use" the Phylactery a few more times, it gets confusing sometimes. If you're stuck, try using the Phylactery.
A. "Use" the Phylactery.
B. Travel to Neverdeath.
C. Get Zarifrax's Coffer from it's hiding place in the cemetery. By the map it's roughly on the lower left edge of Neverdeath.
D. Set the Necromantic Lure a short distance away in the cemetery.
E. Enter the Portal to Evernight!
F. Here you just need to run around Evernight following the quest path and eventually you'll need to escape Evernight. Don't forget to get a drink from the marketplace though first for that achievement!
G. Leave Evernight.
H. Talk to Kavatos.
Quest #8. "The Shard of Night" starts from Kavatos in River District.
*** Spoiler - click to reveal ***A. Talk to Kavatos.
B. Go to the new scenery a short distance south-east in the River District.
C. Enter the Shroud of Night and defeat Morlanth. (This was the hardest part of the quests! Morlanth hits really hard if you don't avoid her attacks!)
D. Take the Shroud and your reward.
E. Return to Kavatos
Shroud of Souls is done! With no time-gating!!