https://www.youtube.com/watch?v=6V_xC2RpuGA
Beginning October 18th through the 31st, you're invited to a grand celebration of all things spooky, wicked, and fun: Samhain 2017! Collect exclusive mounts, pets, and costumes, fight in a killer public raid, and solve new missions!
Log in during the event for sweet free rewards, including the Geist Rider mount! What’s it going to be: trick or treat?