I played this module about 25 years back and don’t remember much of it, but it did have these features:
There was a ‘trap’ consisting of a long chain that descended into a pool leading to an underwater tunnel, and eventually dead-ended stapled to a blank rock face, drowning the character who thought they could use the chain to pull themselves to air on the far side.
There was an empty drider lair above the main corridor than you had to climb up into. It was dusty and empty except for one 50gp gem.
There was a very long, steep, narrow, winding corridor going down at some point.
It was likely a module for player levels 1-4, and may have been for beginning DMs as well.
Given the drider and the corridor going down, I thought perhaps it was Descent into the Depths of the Earth, but that’s for too high a character level.
Anyone remember this?