On the Ship
The Red Ghost and Burton came aboard and joined the fight on the main deck; the ghost thrust a pike into one of the fish-men and Burton finished it with a well-placed thrown dagger. Jathlin's flying cutlas cut at the back of the last remaining fish-man as that creature leaped on (and murdered) a prison guard before being shot down by another guard's quarrel from up on the forecastle.
Thorbin dove down the hatch and thrust his pike through the body of the large fish-man down there. He stood over the body of the dead prisoner and looked around wildly for another target, but all that remained was a few cowering prisoners, the ship's captain, and a wounded guard. (The ship's cleric was there too, but she was hiding behind a forward bulkhead.) Below him, the few remaining crew worked the ship's pump, keeping ahead of the mostly-plugged leak.
The ship was free of attackers now, and would be saved from sinking.
On the Docks
Py'Cott found where he had left his block of whale-fat, and he scooped it up. Valrin, gasping and exhausted, pulled himself up onto the dock. In the water the giant octopus struggled with a lone fish-man, and the guards on the dock (perhaps listening to Valrin's frustrated request for crossbows) finally got themselves organised and filled it full of quarrels. Bodies of fish-men, whale, guards, and a prisoner floated on or below the surface of the rough-waters, but no more threat remained there.
On the Cliff
The crab held two guards in its pincers and it turned around, squeezed, and then let them go. They fell shouting from the cliff to be dashed on the rocks and surf below. The rider slid off and for a moment, he looked like he would kill another guard as he made his way toward the lift's wheel, determined to get there for a reason known only to him. But the remaining guards mounted a strong defense, and they shot the fish-man down before he could complete his goal.
Now, only the crab remained, still hanging from the precipice. Down on the forecastle of the Gray Seagull, the mate cranked the ballista around and aimed it for the crab, launching the bolt which soared true and struck the crab in the mouth. It clung for a moment, gurgling foam, and then fell, landing with an enormous splash on the back of its shell before sinking out of sight below the crashing waves.
End
There was a moment of silence while nearly everyone recovered from the shock of it all. Then Ludz, the young prison guard yelled and cheered,
"We won!"
And others joined in, nodding and congratulating each-other.