http://www.pcgamer.com/final-fantasy-14s-all-saints-wake-event-begins-today/

Between today and November 1, residents of Final Fantasy 14’s Eorzea will be able to participate in spooky, Halloween-themed activities as the Continental Circus returns to celebrate another All Saints’ Wake. 

All Saints’ Wake is an in-game Halloween event where players will be able to earn a special outfit for their characters and hunt down a new range of All Saints’ Wake items.