Chapter 8, I'm not that fast at playing through this game.
Between playing it all last night (good thing I never fall asleep at a normal time anyway) and today, I've reached chapter 13 (the one where you have to get into the tree I think) but then my brother took his 3DS back...
Also, I teared up a bit when Lucina reveals that she is Chrom's daughter... and it was even better since my
Avatar ended up as Chrom's wife. Highlight of the last 5 chapters I've played. Also, I haven't lost anybody else yet. I feel like it's getting easier as I go, probably because I've figured out how to strategize better.