[quote=@Lemons]
Oh god
Can't wait to see the reaction of our resident shoggoth scholar to her existence.
[/quote]

It sounds like this shoggoth is more like an internal parasite in Rebecca's body, so given her reserved nature I don't think it would be obvious to Khalid. Though maybe a shell-shocked veteran would be more inclined to try out Shoggoth Therapy. If he did find out, though, it would definitely be a surprise that the human hasn't been completely assimilated.