At last, Mme. Finklebottom's Revenge joins the rest of the campaign pack, with a slew of new objectives including the tier 1 and 2 11th-slot objectives. Beat them to unlock Arenvarr the Beheaded, and Bonus Idols for the campaign.
When you've unlocked Arenvarr, the Beheaded, they occupy seat 29 on the bench, and their gear will drop from opening normal Silver and Jeweled chests.
Get a sneak peek of the objectives on the official blog!
Good luck!