Oh awesome, so he'll be coming to terms with the supernatural in game? That'll be fun and hopefully not too traumatising for him ;) I also love the fact that his mum knows but it's keeping well... mum about it. I love that detail.
Honestly, I'm sold a little on the idea of his mum being friends or at least have some sort of connection to my older ones and the oh so casual introduction of "son this is so so and so and so this is my son" *wink, nudge and whisper* "he doesn't KNOW anything"
...I am sick at the moment so I may not be making a lot of sense, lol.