The Dwarves are often thought to be a greedy and miserly race, but there are times when they will give rewards to those who have genuinely earned them.
(OOC-I added the names of all those who did submissions but only mine has shown up, for some reason. The others are the following; axlerowes, Echomirage, Ancient Gamer ,Dossta , Pariah.)
A casual remark by one of the party about something met on a previous adventure leads to a summons to and grilling by the Mages' Guild (or equivalent), probably resulting in an expedition back to that area to recover the things for 'study' by the Guild. The party's presence will be 'requested' for this expedition.