So I'm planning a one-shot for the rpgconvention in my town in a few weeks, and I'm thinking of making it happen in a Bermuda triangle/Demon's Sea/Sargasso Sea equivalent in Theah, with maybe a cemetery of ghost ships, a few marine monsters and some strange Syrneth artifact that makes the PC get there against their will...

Thing is... was there ever something of the like in the 1st edition??