R4T13: Flair dove into the water, but was surprised when his own ineptness and inability to swim kept him under waves and with no forward progression towards Wren.

R4T12: A few feet below him, Flair sees Dorn's warhammer lighting the water (and Vilma's shield behind him), as Dorn uses the piling to help him maintain forward progress and slightly up the sediment-ridden bottom as he is now underneath Flair (no gap).
Spoiler: Dorn >>> Collective (Flair)
Show
"Why? Oh, why are you in the water now, Flair?"

R4T8: Vilma, what do you do?

Brother Jaume on deck, Wren in the hole.

Spoiler: Battle Tracker
Show

Brother Jaume: 25. Light on quarterstaff. BLINDED til R6T14.
Wren: 18. Failed SAN check against gibbering mouther. Swimming.
Jens: 17. BLINDED til R5T14!!!
Gibbering Mouther: 14. (47:60).
Flair: 13. 5' below surface.
Dorn: 12. Light on warhammer. On bottom (10'), underwater.
Vilma: 8. Light on shield. On bottom (15'), underwater.