Interesting and potentially important things:

[quote]It’s not like there will be some hidden gems locked away in an American school.[/quote]

[quote]If the girl was paying close attention to Mishka's right shoulder blade she would notice a 13 being tattooed on it.
[/quote]

Whatever Nina heard on the phone (probably just the guy whose neck got bitten, but I'm not assuming anything yet).

Whatever Mishka is hiding on her laptop that needs such strong protection. Possibly related to 13 above, particularly interesting in that her backstory is a GM secret.