Currently Suffering From Deltarune Disease

Step 0: The subject is not who you assume

Rounds 1 and 2 asked: "How long did it take her to smile?" The accepted durations top out at 16 years, glossed as "the first time she ever smiled in her life." A count up, bounded by a lifetime - so the subject is sixteen. That is Noelle, not Dess (who is Asriel's age, college-aged). The smile is Noelle's.

Round 3 changed the question to "Where will it take place next?" - and the apparatus explicitly severs the new "it" from the smile: "Upon her face" → "Didn't mean her smile." So whatever "it" is, it is not the smiling, it is a different event. And "next" (textual, from the email subject line "Re: Where will it take place next?") presupposes a previous occurrence: "it" recurs.

One more pin: the new "her" is also not Noelle. The reply to a pizza answer narrates "Noelle cooked some dough, and they're sitting together" - holding Noelle at third-person arm's length. You don't refer to the subject of your sentence as "they". The whole puzzle runs on the reader importing "Noelle" and "smile" from Round 2 into a Round 3 that means neither.

Step 1: Establish the universe of discourse

Before eliminating where it happens, find the set of places that exist. The apparatus defines it for us, in two replies that bound the world from outside and inside:

"DELTARUNE" → "But of course." Naming the entire world is vacuously correct. It is the "where on Earth?" / "Earth" move: true with probability 1, resolving nothing. This reply declares the domain - the set every valid answer must belong to.

"Beyond the setting sun," "the highest peak one can dream of" → "Couldn't you choose someplace a little more… local?" These are not rejected as false. They are rejected as out of bounds - they name coordinates the world does not contain.

Together these establish something formal logic demands and most theories skip: the world is bounded, and the boundary is real. Off-map answers are rejected not as wrong but as nonexistent.

Assertion: Hometown is not a remnant of a larger world - it is the extent of the world. There is no "outside" to disambiguate against, the way a dream has no offstage, and contains solely itself (or a video game, but I am not claiming Hometown is Literally A Video Game). That is why the puzzle is solvable: the domain is small, closed, and complete.

Step 2: Eliminate inward, by shell

"Couldn't you choose someplace more local?" - beyond the setting sun; the highest peak one can dream of

Off-map. Outside what exists. Rejected not as false but as nonexistent.

"But of course." - DELTARUNE

The whole world. Vacuously true; names the domain, resolves nothing.

"You have to be more specific than that." - hometown; where the sun sets; where she belongs

A region. Correct neighborhood, no address.

"There are trees, sure. But that could be anywhere." - the forest

A non-unique feature. True of the target and its surroundings - fails to pick out the point.

Ding ding ding. - The Lake / The Shore / beneath the lake

The coordinate.

The fourth row is the subtle one and the best teaching case: the answer "the forest" is not false - the lake is wooded. It's rejected for non-uniqueness. Describing a point by a property it shares with everything around it fails to pick it out. This is the difference between a true statement and an identifying one - the heart of what "be specific" means in logic.

The five rows form a complete partition of a bounded set: off-map → whole-map → region → non-unique-feature → point. Nothing falls in the gaps. That is why the proof closes rather than merely suggests.

Additional replies based on location:

"Is that really what you're hoping?" - The Shelter / The Depths

The location is not at the Shelter, but you might think it is. Hold that thought for later.

"That's what you want, isn't it? Candy apples, square dancing… That's what all of this was for! … Well, it was always going to be this way. The only people that walk this path… are those who have their face so close to the road they can't even see where they're going! … But, well. If we're lucky, maybe there's a chance you'll still get lost along the way…" - The Festival

The location is not at the Festival. "The only people who walk this path" - i.e, the only people who go to the Festival - are those who stay close to the road. This is not accessible on the normal route (we'll get back to this, too).

"I get it. She feels a little under the weather and the whole thing is called off. … maybe not." - The Hospital

The location is not the Hospital, and "it" is something that might want to be called off for some reason.

"Wouldn’t you want it to be someplace different?" - Her House / The Holiday Manor

"It" is not at the Holiday house, and you would want "it" to not be there, too.

Step 3: The replies that constrain the answer's nature, not its location

A second axis. These don't move you across the map; they tell you what kind of thing you're locating:

Time answers ("at the end," "tomorrow," "1434 minutes") → "It's where, not when." The event is a place, not a moment. Any reading that treats it as a point in time is refused at the door.

Other chapters' dark worlds (Ice Palace, The Roaring, Cyber City) → "Not at all." Flat denial. It is categorically none of these.

Chapter 5's own dark world (Flower King, Field of Pink and Gold, the fountain, "the dark") → "I have some bad news for you… you'll figure it out yourself." Note the softer register - wrong, but adjacent. Hold that thought.

Internal/metaphysical answers ("in her heart," "inside her SOUL") → "Would they really fit in there?" The event is physical; the body has a definite size. No "she lives on inside us" reading survives.

"Nowhere" → "That's not what the question is about." The event is not optional. It has occurred at some point.

Step 4: The replies graded on time, which order the recurrence

Two answers are judged not on correctness but on when - and they give the recurrence its sequence:

"With Susie" → "Too late!" On the normal route, Noelle goes to the lake with Susie and stays on the shore. "It" is foreclosed. Crucially: the shore-visit does not trip the event (the only time Noelle is at the lake with Susie is in the normal route, which is "Too late!", and Dess is never with Susie to our knowledge) - so "it" is not proximity to the water. Otherwise, Susie would not be too late. The event cannot occur on the normal route.

"The place where it snowed" → "You know that isn't until later." A real future instance - not this one. The event will occur again at a later date. (Possible reference to Snowdin in Undertale? but that's severely speculative).

So the recurrence orders itself on a single axis:

[with Susie - foreclosed] // [the Lake - now] → [the snow - later]

Step 5: The reply that reveals the speaker, not the answer

For completeness - and to model the discipline of recognizing evidence that constrains nothing about the location: romantic-possessive answers ("by my side," "when she forgets Kris was even a person before Me," "at the wedding") → "Gross." Communal answers ("with her friends," "happy town") → "Aww." These locate nothing. They characterize the grader: warm toward Noelle's friendships, revolted by her possession. A disciplined reasoner notes this and sets it aside from the location proof. Knowing which evidence is irrelevant is itself a deductive skill.

The Solution

Assemble what survived every filter. "It" is:

physical (must fit a body) -

at a specific, named, in-world point (not off-map, not the whole map, not a region, not a non-unique feature) -

in the light world (more local than the cosmic answers) -

that is not the smile, not a moment in time, not any dark world, not internal, and not optional -

that recurs, with a foreclosed past instance and a scheduled future one -

and the confirmed site is beneath the lake, verified by the only post-release reply: "beneath the lake" → "So, what did you think?", sent ~2 hours after Chapter 5 dropped, i.e. after the player could have watched it.

"You only need to see her once. And you'll move on."

The correct answer's own line is doubly syntaxed, like the question that preceded it: "You only need to see her once. And you'll move on." See her once - you cannot replay the Weird Route in that save file after this; the witnessing is single-use, one look and the door shuts behind it. Move on - not only "get over it," but move on as in physical passage, the body carried forward through the cut. Both readings are live, and the puzzle means both: you see her once, and you go.

After a while, the screen cuts to black, and an old television screen opens up, with text instructing the player to "Insert Chapter 7 Side B". The game then exits back to the file select screen. A unique completion file is subsequently generated, appending "_b" on the end, which does not fulfill the completion star on the Chapter Select screen. No SAVE points are accessible during this Chapter. - the wiki

"It" - the event - is crossing the lake, and, more specifically in my theory, wrong warping out of the world via drowning in the lake (this is an assertion that I will explain in future essays). On the Weird Route, Noelle does just this - and the game cuts, with VHS glitch-VFX, past the rest of Chapter 5 and all of Chapter 6. This is why the Chapter 5 flower-world answers got the soft "bad news" and not the flat "not at all": the event occupies the seam where that dark world should be. It is Chapter-5-adjacent because it replaces Chapter 5. And it recurs because Noelle is retracing a path already walked - far shore, under the water, gone from Hometown.

Why the pronoun jape? Because Dess also did "it", you know, something you might want to call off if you get cold feet. Trying to cross a lake on your own is pretty hard! No shame in trying to go to the hospital instead. And we'd like "it" to happen in the shelter because that goes downward, not sideways (again, more on this later). I'll be totally honest the Dess/Noelle distinction is slippery here. Probably on purpose!

Where does this go? To Chapter 7, Side B (this is just true).

Assertion: Your viewport in the DEVICE is a physical view of your soul, it is what you, the player, are looking at in terms of a real location inside Hometown. Therefore, we have to assume that drowning in the lake, or going to the bottom of the lake, takes you to Chapter 7, Side B. Which sure is odd, because that seems like a time, and not a location.