Details of the 4 Treasures Of xxx Halloween in Summer Events currently active on UOAlive.
https://uo.com/wiki/ultima-online-wiki/seasonal-events/halloween-treasures-of-doom/
https://uo.com/wiki/ultima-online-wiki/seasonal-events/treasures-of-the-kotl-city/
https://uo.com/wiki/ultima-online-wiki/seasonal-events/halloween-treasures-of-the-sorcerers-dungeon/
https://uo.com/wiki/ultima-online-wiki/seasonal-events/halloween-treasures-of-khaldun/