Halloween One-Shot: Sinking

An ocean research submersible descends to investigate an anomalous reading. What will the crew find, and will they get to report it?

Using the World of Darkness 5 system of escalating threat dice for a submarine in trouble, drawing on Grace Under Pressure and Grave And Watery and that genre.

Update: I got players! Four of a possible six, so I only really mauled the NPC aboard, though I ended with worrying uncertainty. They liked the rising threat dice mechanic, which I thought would work well for something like this. (Should have given them less Willpower for rerolls!)