Mystery Piece - High Priest Gannon

[clief000]

https://devxf2.piratekings.online/database/npc/magicsea/high-priest-gannon.1/

In this NPC, you can exchange a lot of stuff to get rings, bps and all sorts of chests. But, you can also
exchange "Mystery Pieces" into Old Sheepskin Scrolls.
Where do you get those Mystery Pieces? Quest or something?

 

[pooliver]

those pieces do not exist in our server. OSS mostly come from fortune lots