In a campaign I made myself, there's an 8th-level Druid NPC (good guy) who has an item that I want the bad guys to steal from him (killing him the way to kill him) dramatize).
My main concern is that he can easily turn into a bird and fly away (with the object).
There should be a witness who informs the players that the bad guys took the item. His defeat should be credible.
Here is the question:
Should I say as GM that the druid is dead and ignores all resources that a character of this level needs to defend himself?
Or should I, on the other hand, make an encounter (offscene) with a detailed composition of the evil forces to defeat him?
How could I work out this event?