please explain

i have not read that one yet

she is going to another school to meet more kids that are her age and kills them (I guess)
which is also confusing to me

My theory is that it is the same school in a new “timeline” so he can torture the kid that trapped him in the suit more. In this way, the other kid is William, and the new kid is Cassidy.

Wait but the Kelsey was male and Devon was male too

I know. It’s a wobbly theory.

I have the book in my house and I read it three times

so you're saying the kid who killed the girl resembles William
and the girl resembles Cassidy

Exactly. It IS just a theory though.

but hey that's just a theory
A GAME THEORY

Oh I was thinking of that as I wrote that

noice