LMoP: Smelter Cavern confusion - Spoilers!

Question

I'm DMing Lost Mine of Phandelver and my players just bolted from the great hall through the Smelter Cavern towards the easternmost area. They

took massive damage from the flameskull and are being pursued by zombies, but they've gotten through and are just outside the Forge of Spells.

Given that, according to the module text,

the zombies only pursue intruders near the Smelter Cavern and quit when the latter have departed that place, and that the flameskull is sworn to prevent intruders from "passing through" this place.

I'm puzzling over how to proceed, and thank the gods our session ended mid-battle.

I'm hoping someone can provide the right interpretation; mine is as follows:

the zombies are assigned to the Smelter Cavern and will return there rather than chase intruders anywhere (including to the East), and the flameskull is assigned to prevent intruders from getting through the Smelter Cavern (presumably to the East), since that is where the Forge of Spells and the boss of the undead (Mormesk) are.
Thus the zombies will turn back, having strayed too far from their "home base", but the flameskull will pursue the intruders, being unable to accept their having "passed through" the place that no one was to pass through.

Is this correct? Not correct? Or maybe there's no correct answer?

Answer 1

I'm going through the same module with my group. If they end up in the same situation I would have the zombies AND the flameskull not go more than 15 feet (arbitrary distance) beyond the Smelter Cavern in any direction. I would probably have the flameskull engage them earlier, and the zombies chase them farther - but only by a little bit.

I'm thinking the flameskull is motivated by preventing passage through, but has no.... object permanence I guess? It something isn't actively trying to pass through the area that the flameskull is trying to prevent passage through, it doesn't care. If they try to go back through the area though, it would likely re-engage them.

I'm 100% for running away from the flameskull being something that works in the party's favor.

I don't have the module in front of me right now, (I'm going off memory) so if I've put something in here that is contradictory to the text, please feel free to point it out.

Answer 2

What do you think they should do?

You say "I'm DMing Lost Mine of Phandelver", however, I say, "Deciding how monsters react to the PCs is DMing, so, whatever you are doing isn't DMing".

You are sitting in the big seat so you get the power and the responsibility of making the big decisions. This is your adventure, these are your monsters - no one but you can tell you how to run them - not the module writer and not me.

That said, I will offer some advice:

• What's written in the adventure (whether yours or someone else's) is not gospel
• The payers don't know what is written in the module
• The creatures aren't actually real - they don't actually have "motivations"
• The role of the DM is to enable the players (including the DM) to have fun
• Fun comes in a variety of forms: some players like a desperate struggle that may or may not end with some (or all) of the PCs dead, some don't
• DMs can get my guy syndrome too
• It follows that there are only 2 questions that you need to answer:
  1. What are the capabilities of the creatures i.e. what can they do?
  2. Of all the things they can do, what is going to be the most fun overall?

Answer 3

The Monster Manual says that a Flameskull's master "must craft their instructions with care to ensure that the creature carries out its tasks properly" and that the Flameskull "interprets those commands to the letter". From this, we can infer that Flameskulls are literal-minded in the extreme and if they are not told to do something, they will not do it unless it is necessary for the completion of their task. Converely, if they are not told to stop doing something, then it will continue doing it until they can do it no longer. If a Flameskull is commanded "bring me a diamond", it will bring exactly one diamond. If it is commanded "bring me diamonds", then I hope you like being buried under precious stones, because you are going to get all of the diamonds. All of them.

I have not run LMoP, but I would reason as follows:

• Flameskulls do exactly what they are told. They do no more, and they do no less. If the instructions you give are not the instructions you mean, then you should give better instructions next time.
• The skull in the cavern is acting on "ancient instructions to prevent intruders from passing through". Note the lack of instructions to chase intruders, kill intruders, punish intruders who do pass through, steal intruders' underwear, or dance the macarena.
• Valid targets for the skull are therefore "intruders who are trying to pass through". If someone is trying to pass through the room but is not an intruder, they are not a valid target. If someone is an intruder but not trying to pass through the room, they are not a valid target.
• Once someone has passed through the room they are no longer passing through the room, nor are they trying to do so. Therefore, a character that has passed through the room and is not currently crossing back is not a valid target for the Flameskull and will be ignored by the Flameskull. It is not even considered for targeting area effects or multi-target attacks.
• If a character that is not trying to pass through the room is attacking the Flameskull or aiding another character that is trying to pass through, it becomes a valid target again. The character is actively hindering the Flameskull and must be eliminated lest the Flameskull become unable to complete its task. Once the character stops attacking/helping, they are no longer hindering the Flameskull and will once again be ignored.

With this reasoning in hand, I would have the Flameskull break off pursuit and attack of each character individually as soon as the Flameskull can see that the character has passed through the room and shows no intention to cross back. That character is no longer trying to pass through the room and is not what the Flameskull is interested in. If that means that the Flameskull turns away before the zombies, so be it. The behaviour of the zombies and the orders given to the Flameskull are not the same thing. If that means your party runs through the room taking fire until they cross the exit threshold and are then safe, so be it.

Of course, if the party doesn't destroy the Flameskull (complete with holy water/Dispel Magic/Remove Curse), then they have to run the gauntlet on the way out back. Good luck to them.

Answer 4

Maybe use the NPCs gently guide the party?

When I ran this, my adventurers stayed to the west side of the mines and encountered the Black Spider way before ever discovering the Flame Skull and friends. I didn't want them to battle the Black Spider first, so I had the Black Spider "hire" the adventurers to eradicate the mines of the undead blocking access to the Forge of Spells. I thought this was safe because my players REALLY wanted access to the Forge.

Maybe you can use the wraith (Mormesk?)in the east in a similar fashion?

Good luck!