The following is shared by Zelas to the group:
In Old Rabble, the inscription reads as follows:
So dry, I thirst, and here you come along; do you have some nectar, so sweet and strong?
A taste of myne nectar so sweet and strong, 'tis all I desire in this hole in which I've dwelled so long.
Share your nectar, so sweet and strong, and I'll share my vigor that you may dance and laugh and last in lust, and sing the night-time's song.
Feed me only nectar, so sweet and strong! Or i will repay you with myne poison, if you feed me wrong.
Zelas's knowledge in arcanery allows him to deduce that the weaves of magic in this object temporarily grant an unnatural vigor and agility to those present the room when it is activated (+2 reflex bonus to ac, immunity to poisons), but it requires the correct reagent placed in the well to activate it.
More subtle are the weaves of a curse; if the wrong reagent is used, there will be a negative effect on those in the room. The nature of this curse eludes Zelas.