[X] Let the Wisps be. If that Hag ever enters your domain she will fall under your laws regarding slavery, otherwise the Wisps may stay lantern lights for all times to come.
-[X] Visit the Orphne Court. You have an Undead to make an Unraveling from, and you'd like to know whether the Fey of Orphne can provide an additional "safety net" in case all goes wrong - something stopping, or at least blunting Divine attacks would be nice.
[X] Plan Wisp Closure
-[X] Teleport in and render the Hag helpless, but don't kill her. We will honour our promise, even if they didn't honour theirs. They get one chance to either serve us or remain inside those lamps, in the Larder.