Maxperson
Morkus from Orkus
Maxperson, I don't understand why you keep bringing up this idea that Eloelle was lied to by her patron. That is not part of the scenario that Elfcrusher described in the OP.
It's the only logical conclusion. The patron gave her the answer. If the answer is incorrect there are two possibilities. The patron lied, or the patron was mistaken.
When Elfcrusher says Eloelle does not know the answer to the Riddle, what is meant is something like the following:
* Eloelle has 5 INT;
* Therefore, when Eloelle's player makes a check based on INT, the GM typically gives him/her no information, or false information - because that is what happens when a player does poorly on an INT check;
* Therefore, by the rules and conventions of the game, Eloelle's player is stuck in this position of ignorance or error as far as gameplay goes.
Most of the time, it is a disadvantage to be stuck in a position of ignorance or error, because the context and consequences of action declarations are harder to work out.
Sometimes, though, it is an advantage to be stuck in such a position. ZoT (and ESP, and Domination used to interrogate, etc) is an instance of this: because if Eloelle's player is stuck in a position of ignorance or error as far as gameplay goes, when an evil cleric casts ZoT on Eloelle then all the evil cleric can get is ignorance and error!
Right. The evil cleric gets the incorrect answer. The ignorance and error portion.
Up to this point, I have said nothing about how Eloelle's player narrates her ignorance and error. Let's now add in that narration:
* Eloelle is mired in ignorance in error not because she is a fool, but because she is a genius who nevertheless follows the dictates of her patron to keep all truths hidden - hence she appears to be a fool;
* This appearance of folly continues even when s/he is subject to enchantments like ZoT, domination used to interrogate, etc, because her patron shield her from the magic and continues to demand that she spout ignorance and error.
This cannot happen without altering the mechanics of Zone of Truth. There is no mechanical shield, so when she fails the save, she really fails it and has to tell the truth as she knows it, even if that truth is incorrect. The patron can demand all it likes, she either answers truthfully as she knows it, or refuses to answer altogether. She has no option to lie.
The overlay of that narrative does not change the gameplay of INT checks, or of ZoT, at the table. Eloelle's player does not have access to any more knowledge than that to which s/he is entitled in virtue of having a 5 INT PC. The GM's evil cleric does not have access to any less knowledge than that to which s/he is entitled in virtue of casting ZoT on a 5 INT PC.
The difference is never the less very profound. Different answers produce very different game results, even if the knowledge imparted is the same. The entire direction of the campaign can shift over that difference in narration.
I don't consider a profound shift in the direction of the campaign to be "nothing." Maybe you do. I don't know.Elfcrusher has tried to illustrate this by way of various thought experiments: Eloelle's player's narration could all be taking place on a blog; or be kept hidden from most of the players at the table; or be prefaced by an announcement: "I'm now going to do my Eloelle thing"; and nothing would change as far as gameplay is concerned.
I take it that Elfcrusher is providing these thought experiments of the story-telling being divorced from play simply to drive home the point that the Eloelle narration is not a factor in action declaration or action resolution. In that sense, it is epiphenomenal.
The resulting lie will alter how the evil cleric reacts, which can shift the entire campaign. It is very much a factor.
Yet another would be another character (PC or NPC) realising that Eloelle has all the truths that she won't speak, and can't be forced to speak (due to the intercession of her patron) and hence coming up with some spell or ritual to extract them from her: mechanically, that would be something comparable to a Contact Other Planes or Commune Spell, and hence it wouldn't break anything to allow it to use Eloelle as the source of the information rather than other-planar beings.
This already exists. It's called Zone of Truth.
Part of the reason that I am sympathetic to the Eloelle narration is that I have something comparable in my 4e campaign. In that game, one of the PCs is a Deva invoker/wizard Sage of Ages. As a Deva, the PC has the Memory of a Thousand Lifetimes ability. As a Sage of Ages, the PC has +6 to all knowledge skills. At our table, the narration of the two is intertwined - the rationale for the player's successful knowledge checks, which give him (and his PC) access to information that can't be explained in terms of the actual play of the game (eg the character never visited the relevant library, or spoke to the relevant sage), is that he is recalling it from one of his thousand prior lives.
And this is great.
What would happen to this character in a ZoT? At the table, we have put no limits on what he can know from his prior lives - it is all narrated post hoc to give context to, and make sense of, successful knowledge checks. Is the player allowed to say, in response to queries under ZoT to which he doesn't know the answer, "I don't know", or is he obliged to roll a knowledge check which will almost always be an automatic success?
The PC you describe doesn't actually know everything. He just has access to a bunch of knowledge from past lives, so he can still have things that he doesn't know. That jives with Zone of Truth.
But ZoT would force that issue to be confronted. And it's not obvious to me that the only rules-consistent option is to say that the PC does know everything, and hence that there are no limits to what can be extracted via a ZoT spell. If the player simply wanted to declare "I don't know - in all my lifetimes I have never encountered that", I don't think that I - as the GM - could oblige him to make a knowledge check, which will almost certainly succeed (perhaps failing only on a 1 or 2, depending on the skill), and then hand over the information to the evil cleric.
Why would such a PC know anywhere near everything? Even with 10000 past lives, such a PC wouldn't know even half of everything. I don't see any need to rule that the PC knows everything and there are no limits as to what could be extracted. Heck, a simple question like, "What did I have for breakfast this morning?" would stump your PC.