Merlin and his student's were in his potion room creating something when suddenly...it started snowing outside...in the summer?

Merlin:"No...it can't be...not her..."

Student 1:"Who are you talking about Merlin sir?"

Merlin:"Morgana..."

As they looked at the vault they locked you away in they saw you and you're army of frozen souls knights standing outside the vault, you had frozen it shut so you won't have to share Avalon with the rest of the dark magic