Afraid to sleep

Demi told me she never wants to sleep while having the body, because 'it' will take over. Whenever she sleeps she feels 'it' trying to break it's way out. Does anyone know something about what Demi could be talking about?

Is "it" another alter or what does Demi mean? Could she be more specific?

Last time I asked she started trembling out of fear, soon after she just fainted. I don't know if an alter can cause fear that much.

Could another alter help her write about it or describe it to you? She can write about it to me in a PM if it would be easier for her.

She doen't want to let anyone know, probably because of some kind of fear.

A while ago we did find a letter from most likely Emily
how many (and it)
About 70 employees

I quite start wondering it Demi and the letter mean the same 'it'.

Anyway, Demi doesn't want anyone to know, that is why I asked here if someone could help