Going through my old D&D modules I’m always surprised by things I didn’t see the first, or twentieth, time through.
This image from The Sinister Secret of Saltmarsh (U1) is a beauty.
The box text reads:
Leaning on the starboard rail and looking towards the coast are three human figures. the one nearest the stern seems to be holding something in his hand at the shoulder level; occasionally he seems to adjust it in some way.
Any explanation about what the man has seen or is experiencing is left to the readers imagination…