From publisher blurb:
Last Stand is a series of adventures that carry the same themes, but each adventure is completely separate, having nothing to do with any of the others.
Last Stand is high fantasy adventure. As such, the characters will be a little more powerful than most other One Knight Games. This is intentional, in order to provide the Players with an epic experience.
However, this does mean that these characters are not compatible with other fantasy One Knight Games adventures that are not also high fantasy.