Following on from My Brother is an Avocado, this picture book is a humorous look at what happens when a new baby joins the family.

"Dad says my sister is a treasure. I can't wait until we play pirates together and dig holes to look for more. I'll be the captain and wear the hat because I'm the oldest."

A girl takes the terms of endearment her family use at face value when she wonders what it would be like if her new baby sister really was a treasure or a ray of sunshine or a dimply dumpling in this adorable new picture book.