DONTFORGET: The Unofficial Story Mode Novelisation Prologue

(+ a screenshot leak from time travel)

Apparently, Frisk has seen in-game height, which they share with Noel, but has no confirmed age, though they share it with Suzy.

On other hand, Harlow has confirmed age, but it's unknown what was their height in UT.

What's your opinion on age range?

DONTFORGET Theory: Who the heck are Harlow's "unlikely allies" and what the storyline might be?

Includes DELTARUNE Chapter 4 spoilers.