Disaster / Destruction
The group arrives but with more than they set out with.
The group arrives after having run into some new "friends", Arkin, The Griph, and Aelea Hallowmane. They find the Delve and are soon put in danger as a poison dart-trapped puzzle blocks their way in and threatens to end them prematurely. After solving the puzzle the group explores within and finds themselves face to face with a massive orange crystal cluster. When one of them walks to close reality breaks around them and they're transported to the plane of Mechanus where they must defend themselves against a small gang of metal monsters. Shortly thereafter, they're transported back... but it's not the same day they left...