What does that amulet you find in the cursed abbey that one next to the engineer that says that there is something strange about this item or something like that does it do something special?
Sorry guys, but the amulet you find next to the engineer in the cursed abbey is the AMULET OF MARDEC, an unique item, yes (just like the amulet of glory), possibly very good stats - but has nothing to do with the holy item quest at all. (The amulet required for that is found in the elven ruins in the dark forest!)
Which means you can wear it, or sell it, just as you please.