Back in 1982/83 I purchased a whole load of Judges Guild modules, mostly (I think) for the maps (as they are often very evocative). Sadly a couple of them were - how shall I put it - sadly lacking (The Dragon Crown in particular).
One of the ones that most definitely wasn't lacking was "The Book of Treasure Maps" by Paul Jaquays. It gives five small modules, each with some sort of treasure map, ready to be dropped into an ongoing campaign.
I never ran any of them at the time, and then I moved into my MERP / Rolemaster phase, so it was twenty five (!!) years before I ran a game of D&D again. When they found a treasure map, it obviously had to be one from this old book...
Map of the Tombe Of Aethering Who Is Called Damned
Now this map has a couple of fantastic bits - the name, the "hidden entrance", the question marks for unknown areas, the fact that you have a map to the treasure but only a vague idea of the location, and the evocative "copyed from the original" and a clue that the tomb "is not yet finished" so the map is missing something.
The module gives you rumours about Aethering's Tomb which can be discovered from local NPCs or libraries, so there was plenty of fun with musty unhelpful librarians and useless extra pieces of information I invented for them. For example, if the library had no information I'd tell them instead that they found a tome on Tomb construction with valuable hints such as "always use the best quality stone" and "never trust contractors".
Finding the tomb entrance isn't easy - it has been hidden behind a river redirected to form a waterfall over the entrance - my players discovered the dry bed of the old river and investigating that lead to the waterfall and the narrow path leading behind.
The tomb contains several varied traps, the tombs of his Wife (tries to possess a PC) and Son (a mummy nailed to the wall hand and feet) both of which are my sort of disturbing, the passages have been further excavated so the secret door isn't where you expect, there's a false tomb, and the real tomb which can be found if you maintain belief that the map is correct and hence deduce a corridor has been blocked off with a secret door. Even then, you have to persevere to find the buried treasure.
I think the imagery in this module has heavily influenced me - last night the players had to rescue some prisoners so I had them suspended in cages above a pool of piranhas - it's not just a random bunch of undead, it's undead who all hated each other in life and want revenge in death. Don't you love families?
The adventure is great throughout - in particular I love the author's illustration of the mummy nailed to the wall:
Yes, that's a cursed amulet hanging round it's neck! The only changes I made in play were to beef up the monsters a little, and to turn the cursed skull with the gem inside into a skull with gems for eyes that when touched turned into an "Eyes of Fear and Flame" from the Fiend Folio.
The tomb is only 8 pages of the 52 page module - the other adventures also look good, but I've never actually DM'ed them - yet!