Three new Halloween missions are available. A phone call from Madame Rogêt will get you started.
- The Meowling
- Crossing the Black Path
- The Cat God
This is all just a part of update 1.3.2 which also includes seasonal achievements and rewards, new clothing available in London from Pangaea and the Ealdwic station hat vendors, and a bunch of other tweaks to existing content. See the full list here.