The Walking Deep Lurker prowling the south end of this room spews toxic globules with surprising accuracy and distance, so treat it with caution. Imbue Salvation with the Flame Hollow’s flames and set the creature on fire, then rush its position and finish it off with the Barbs of Scorn.
Don’t stand back and let it spit its toxic projectiles at you!
Break through the obstacles in the tunnel to the west to reach the train platform. Stick to the near side of the tracks and let the closer of the two Harvestors come to you. You don’t want to deal with both of these creatures at once. Focus on dodging her attacks, hitting her with Rapture counterattacks (Force Hollow) and then unleashing a Cataclysm attack when the Chain Spiders get close.
Deal with the Harvestors one at a time.
Collect the Invigoration Core from the far side of the tracks, then set about smashing all of the purple coral lining the tracks and encasing the train car. Use the Mallet of Scorn to knock the train backwards, to the southern end of the tracks. This puts it in position to switch to the western track. But first you need to throw the switch.
Leap from the train car to the top of the scaffolding where the Incandescent Remains can be seen glowing. Use the Force Ball ability to roll along the ceiling to the control room and pull the lever. This not only switches the active tracks below but opens the door so Fury can descend the stairs back to the platform.
Flame Jump from the train to the rocky ledge above. Grab the Angelic Artifact and continue leaping to the top ledge. Snag the Piece of Adamantine from behind the purple rocks to the east, then head down the sloping tunnel to the west.
Dodge forward to avoid the dart thrown by the Ranged Minions in the cave, then hit them with a Flip Saw attack.
Pull the lever on the wall to open the adjacent gate. This allows Fury a quick route back to the Serpent Hole in Sunken Tracks. Consider heading back now to feed Souls to Vulgrim and make a trip to Ulthane to upgrade the Mallet of Scorn.
Throw the lever in the control room, then send the train hurtling to the north end of the tunnel.
Bring the Fight to Gluttony
Gluttony’s massive body occupies the bulk of the next room, but it’s far too large in this position to even know Fury is there, let alone be susceptible to her attacks. To get its attention, you’re going to have to fight your way over to the stairs on the right. First, clear the entire floor of enemies and grab the Angelic Artifact beyond the metal stairs.
Clear the area of enemies, then return to the Serpent Hole for last-minute upgrades.
Top off your Health, activate the Flame Hollow, and consume an Undying Shard or Fortification Shard. It’s time to get to work.