This skip was found by Shiekrunner.

The 3rd boss' bridge exists but is invisible, and the caste gate that would turn into the bridge has no hitbox. So all we need to do to skip to the last boss is to go past the lava wall in front of the 3rd boss.

When using the Shadowflame Rockets, watch out, because it's extremely easy to hit some random critters spread around the area after the 3rd boss.

Items used:

• Wearing: 515 ilvl Mastery pieces, 3x Azerite Armor with the Longstrider trait, 2x Lv70 Mastery crafted Dragonflight gear (with the Blue Silken Lining embelishment), speed enchants, Mastery & Movement speed gems
• Before entering: Fried Bonefish, Charged Phial of Alacrity, 2x Hissing Rune, Pep-In-Your-Step
• During run: Shadowflame Rocket Blast