Welcome to the fifth entry in the series Original Scenarios Resurrected, wherein D&D scenarios from the 70s and early 80s are republished with the permission of the authors, usually together with extra contemporaneous material. Today we return to P'teth Tower by Brian K. Asbury. For all entries in the series see here.
When you are told "Save v.s dexterity" or "vs. constituion", this means you must roll that score or less on 3 six-sided dice (ie 3D6). e.g. Brakkit has a constituition of 8; to save vs. constitution he must roll 8 or less on 3D6. (I realise that all this sounds rather obvious, but the relative newcomer to the game, at whom this is aimed, might not know these things.)
The "relative newcomer" would indeed likely not know this - as despite these being a central feature of Dave Arneson's Blackmoor campaign, AFAIK they didn't make it to an official rulebook until B/X in 1981. I don't know where this version of the rule comes from (it's not the same mechanic as Saving Throws in T&T) but clearly Brian expects everyone to know this rule. What I find interesting is the use of 3D6 - where I've been used to it being a D20. In the "Complete P'Teth Tower", which is system agnostic, the intent of this is clarified:
If you are asked to 'save vs. dexterity', this means that you must roll your character's dexterity score or less on the same dice you used to rollit originally.
So here are the original three parts of P'teth Tower combined into a single pdf, all copyright Brian K Asbury. I've played both versions, and it's far easier to play the omnibus edition from the last blog entry since it contains dungeon map sections which make mapping the dungeon fun - but there is a lot of charm in the style of the original presentation. Enjoy.