You pry the harpoon out of the whale, load it into the barrel, and fire.

The pulley mechanism yanks you swiftly to the other rooftop.

Readying your pistol to be fired indiscrimately into the void below, you hear some murmurs along with the gurgling.

The water seems to be rising slowly.

Looking into his mournful, pleading eyes, you start to reconsider firing your handgun.

You opt for the harpoon gun instead. You figure might need the bullets later if you have to off yourself.