when exactly did dess go missing?
its implied that she was around asriel's age (who based on being in college is likely 18-19 right now?) and based on the items in her room (unless the unique leaves aren't meant to be weed, how old was dess when she started smoking?) it seems like she was a teenager but she also is implied to have disappeared when noelle was very young (spelling bee from chapter 2).
assuming kris and their classmates are around the same ages (probably 14-16 given that some of them have jobs, also supported by toriel saying that soon kris would be off to college), dess was at most 4 years older than noelle. so i guess she may have disappeared when noelle was 9?
i feel like i may be missing something or toby is specifically fucking with me.