Scenes (also called scenarios) appear to be the "chapters" of the game, viewed on an overhead map. They are re-playable either via solo or with a group.
List[]
Fallen Keep[]
The Fallen Keep is one of the early concepts of a scenario. Players have to find a way inside the keep; ways in are both overt (destroying a crank via ranged attack to drop the drawbridge) or covert (discovered through exploration).