Level 117^^^ fathomlurker - Needed for 'Omen of the Deep [Duo]', 'History of the Deep [Duo]' and 'A Chapter on the Planes [Duo]'. - Joust the red circles.
This is the zone exit and teleporter to these other levels as you unlock them: Vapor takes you to the Cumulus Coffer, Ice to the Frozen Hold and Water to the Marina Repository.
Connects to these other levels: Entrance takes you to the zone exit, Vapor to the Cumulus Coffer and Ice to the Frozen Hold. Unlocked by defeating Frigid Shatter.
Connects to these other levels as you unlock them: Entrance takes you to the zone exit, Vapor to the Cumulus Coffer and Water to the Marina Repository. Unlocked by defeating Memory of Povar.
Level 117^^^ spirit - Needed for 'Omen of the Deep [Duo]'. - Unlocks the Ice Portal upon defeat - Cure Depth Charge elemental detriment to avoid wiping.