I am having a new grandchild and my 12 year old grandson is getting a new sibling.    He is very very excited and happy about the whole thing.  I have sent several books to my daughter about  being pregnant.   I found some awfully cute and different ones.   So the grandboy is kinda wondering why I did not send him any,  since he is part of the whole deal too.   Well,  I started looking and am not finding much about the subject in his age level.    Lots for little kids,  but nothing really for an older brother.   Any ideas?       He is a super smart kid that wants to know exactly what is going on in the developement  and all that.      He is not interested in how it got there  though,  LOL.    

Anyway,  I would appreciate some suggestions.