Just started a stand-alone thread for this because it should have one.
Finished in not much more than the time it took you, Nl1. Really accelerated at the mid-point. Not surprisingly, as a lot of it is about process of elimination. It felt a little cheesy, but I made a lot of progress when I started looking at the clothing of the characters. A lot of the stewards, seamen, and topmen wear similar outfits.
Great design, great ending, great music and sound, great look. A real triumph.