User blog comment:D0m0a/Nothgard Empire/@comment-28815651-20160902150114/@comment-28144855-20160902210158

Exactly. If you do borrow canon, you make things plausible, yet you do not make any major divergences in the main story, It is part of the world our characters are in, so it is not totally off limits, but at the end of the story or arc you leave canon exactly as it was, enriched by the presence of your characters or if you like expanded but unchanged.

Example: Druella knows about your country, she attacked believing you are a threat (like Lescatie) you fend her off, she is pissed and curses your name but she gave up after seeing the futility of the task and focused instead on her usual Druellish things in her life...

You can play a little more about the past events, as long as the thing that happen do not screw with the current timeline and stuff.