All Interactive Maps and Locations
Descent
After completing the Prologue in Diablo 4, you'll be able to start up Act 1: A Cold and Iron Faith. This section of the walkthrough will guide you through Act 1's 18th mission, called Descent. This main story quest comes after Crossing Over, after the bridge is formed across the Black Lake.
Descent
Time to make your way across the bridge. This will lead you into the Necropolis of the Firstborn.
Once you’re there, continue following the path and you’ll eventually run into a vision of Rathma. He’ll speak a bit before vanishing, then you can carry on following the path.
You’ll come across some Ghouls and a Shattering Revenant to fight, then keep following the path.
As you continue on, a vision of Rathma will appear again to speak to you about prophecy, then vanish. Once he’s gone, carry on following the path.
Down the steps will lead you into the Central Chamber. Unfortunately, your way will be blocked and you’ll have to destroy a Tumor of Hatred to open it up. There’s one to the left of the door (accessible by jumping), that’ll clear the archway ahead of you. You'll have four more tumors to destroy after this one as well.
Once you’ve done that, jump back over, head through the open area, and take a right to climb down from the bottom of these steps to reach the next tumor.
Follow the path straight ahead to find another one, just beyond the left staircase.
Once you’ve gotten rid of it, head back to climb up the wall on your right. Turn the corner here to keep following the path and you’ll find Fangstorms, several Ghouls, and Shambling Corpses to fight through. At the end of this path, you'll also find another vision of Rathma, proving you’re on the right track.
Take a left and head up the stairs to enter into a larger area. Continue on the path to the left which will lead you to another tumor. Get rid of it, then climb down the wall behind it.
Head left down the path until you hit a staircase on the right across from where you initially climbed up, then head up. On the other side, head left towards the next staircase, but veer to the path on its left side. Duck underneath the branch here and then get rid of the tumor.
Now, head back to the staircase by this path and go up. After climbing the second set of stairs, you’ll reach a landing. Go left around the broken stairs here to continue following the path.
A vision of Rathma will appear again and vanish. Once he’s gone, keep following the path and you’ll soon reach the final tumor at the end. After clearing it, move ahead of it to climb down the wall.
When you reach the bottom, you’ll see a vision of a conversation between Inarius and Rathma. After listening to them, destroy one last tumor that’s appeared to clear the way into the Central Chamber.
You’ll see another vision of a conversation between Inarius and Rathma while on this path. Listen in, then keep moving. Not long after, you’ll reach a lookout as well (marked by a red symbol on the floor) where you can look at the Balance’s Sanctum. After doing so, continue on the path.
You’ll soon reach a Healing Well where you can replenish your health items. Do so before progressing forward.
In this next area, you’ll be thrown into a boss fight with Lilith’s Lament. Below, you can find a breakdown of how to approach this fight and how to beat him.
How to Beat Lilith's Lament
During this fight, you'll only have Lilith's Lament to worry about, but he has plenty of attacks up his sleeve to focus on.
In the beginning, Lilith's Lament will fire one purple projectile at a time and follow it up by throwing puddles of brown sludge on the ground. If you land in one of these puddles, you'll slow down and your health will drain, so it's best to move quickly around this arena. Thankfully, though, you'll be able to see where a puddle will land thanks to a brown circle that appears on the floor first.
If you're a ranged weapon user, you'll want to keep moving and stop to fire off only a couple of shots at a time. For melee builds, you'll want to rush into him and smack him a few times before moving away. It's important to weave in and out because he can also drop sharp spikes down around him that can hit you.
When you hit the second marker on his health bar, a Knight Penitent will drop in to assist! This helper will be greatly appreciated, especially with Lilith's Lament's next attack. The Knight will call out to you to stay close, and you should listen. Head over to the Knight Penitent and take shelter under his barrier, as blood will cover the floor. During this time, Lilith's Lament is immune to all attacks as well.
Once the blood clears, you're safe to come back out. Unfortunately, that's not the only attack that Lilith's Lament will have gained. His hand will be able to transform into a whip now, but thankfully, a red slice on the ground will show you what section the whip will be covering so you can dodge out of the way.
At this time, he'll also bring out rolling versions of the brown sludge that you'll have to move in between (along with the puddles still dropping). You can see where these form from brown rectangles on the sides of the arena. Where they form is where they'll begin to roll across the arena, so you can plan out your best angle to get to before they go. They don't leave a long trail behind them, either, so you can move behind them when you don't see brown on the floor.
These will all appear alongside his usual attacks, so you'll have to move around slowly to get your attacks in. Thankfully, the Knight Penitent will be helpful in taking him down (the glowing light that ripples through the ground is from him as well, so have no fear).
At the next marker, he'll cover the ground in blood again, so go to the Knight Penitent for protection. Afterward, come back out and continue the fight. In addition to his usual attacks, he'll also form a collection of 10 purple projectiles around him and fire them off at you. With this, try and dodge around the arena in a circle to get out of their way. None of them are homing, so they're fairly easy to run away from.
As the fight goes on, the rolling brown sludge and drops will begin to take up more space on the floor as they drop/roll more frequently, so you'll want to keep moving around and dipping in when you can to strike at him.
He'll cover the floor in blood again after the third red marker, and once more when a sliver of his health is left, so hide under the Knight Penitent's barrier during this time.
After defeating him, he’ll drop several different rewards to pick up. Then, go talk with the Knight Penitent who jumped in to save the day.
It was Vigo! Unfortunately, he doesn’t make it, but will drop a Legendary Amulet for you called Vigo’s Protecting Amulet.
After picking it up, follow the path forward to pursue Lilith. Along the way, you’ll see another vision of a conversation between Rathma and Inarius. After listening, keep pushing forward. Inside the next area, you’ll see a symbol with Lilith’s Blood Petals on the floor above a dead body. Interact with the Petals to begin a cutscene of what happened here with Lilith.
When the cutscene ends, you’ll have completed the quest.
To go to the next quest in Act 1's walkthrough, click here:
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