“The 2021 Treasures of Halloween event is available for preliminary testing on TC1. Please use the moongate at the Britain Commons to visit Dungeon Hythloth. Rewards are intended for final release and additional lore pages will be available when the event goes live in October 2021.”
Content retrieved from: https://massivelyop.com/2021/09/10/ultima-online-has-begun-testing-new-dynamic-events-and-prepping-halloween/.