Spoiler: Battle MapH = Hole. The water surface is just a foot down.
A B C D E F 1 w w w w w w 2 w M H B w 3 w w 4 w w 5 w w 6 w N P w 7 w T, Ma w 8 w w 9 w w 10 w T w 11 w H w 12 w w w w w w
P = Broken Pedestal
w = Wall
T = Tara
B = Bob
N = Nabaru
M = Micah
T = Ted
Ma = Mao
D = A 'Drowned' - undead with water powers.
The party readies for battle, watching for the first signs of the corpse emerging out of the water.
It doesn't. However... The stone floor shouldn't be wet except where party members have walked while dripping from the swim, but even completely dry areas are starting to take on a watery glint near the Northern hole.
Bob, even though he's out of the water, suddenly feels like he is running out of air and desperately needs to breathe.
Spoiler: Rolls
Constitution check to avoid starting to drown: (1d20+1)[20]
The DC is 10.
Bob passed, and can act freely. However, the feeling of imminent suffocation is not going away.
Spoiler: MicahSpoiler: !!!!Spoiler: !!!!!!!!!!!!!You feel fine. Bob's not doing great, though.
Nothing emerges from the water. The party may act. Block initiative would normally split the party up into blocks, but the enemy rolled the highest Initiative somehow, so the next 'block' is the whole party. Everyone may act in any order.