The Chronicles of Elantra
Before the unplanned "visit" to the West March, Kaylin invited the Consort to dinner. For obvious reasons, Kaylin wants to cancel dinner - forever. But the Consort is going to show up at the front door at the agreed-upon time. The fact that she tried to imprison Kaylin's guests doesn't matter at all...to her.
A private Barrani Hell, built of Shadow and malice, exists beneath the High Halls. It is the High Court's duty to jail the creature at its heart - even if it means that Barrani victims are locked in the cage with it. The Consort is willing to do almost anything to free the trapped and end their eternal torment. And she needs the help of Kaylin's houseguests - and Kaylin herself. Failure won't be death - it will be Hell. And that's where Kaylin is going.