Ask:
Illinois?
Answer:
Close, but I actually had my MIL mail your letter to be a little extra sneaky . Here's another clue: I'm in a state that borders Illinois (and it is VERY cold here right now).
You'll probably get a bigger clue next week because I've ordered a package for you & it will have my name & address on it when it arrives. So, be on the lookout!
I hope you have a great weekend !
Your Big Sis
Answer:
Oh that WAS tricky