More than one monster in combat question

[MrMooky]

Originally Posted by Clipper

Yes. When you automatically defeat a monster, it is removed from the combat, but the combat is not over, so other players can still play cards to attempt to stop you gaining a reward.


The situation is like this:

Action: You Kick Open the Door and find the monster card.
You: This monster is automatically defeated by fire and I have a fire attack, so I automatically kill it.
Action: You set the monster card aside to indicate it is not in the combat.
You: I'm now winning this combat against nothing. Does anyone want to try to stop me?
Other player: Yes, I'll play this Wandering Monster card with a Level 10 monster.
You: The monster side now has a combat strength of 10. I wonder if I can beat it...

The battle continues against the new monster. There will be two possible results:

If you win the battle: You get levels and Treasure for both the monster you automatically killed and the wandering one.

If you lose the battle: You roll to Run Away from the wandering monster. You get nothing (neither levels nor Treasure) for killing the original one automatically.

How would it be handled if I was facing a normal lvl 10 monster, and someone wandered in the lvl 10 that insta dies to fire attacks? Would the monster that dies to fire just be removed, and I'd go about fighting just the normal lvl 10?