I'm looking for a book for my 3 year old boy who is soon to become a big brother. He is convinced that the new baby arriving is a girl and insists that it must be a sister. The person who did my last scan said 'he' although I didn't ask to know the sex, so I'm pretty sure it's a boy. I think that lots of books seem to be about siblings who are a mix of boys and girls (e.g. Alfie and Annie Rose, a current favourite). Does anyone know of any where there is a baby boy and the older sibling is also a boy?