"When an egg and a sperm meet, they swirl together in a special kind of dance. As they dance, they talk to each other. The egg tells the sperm all the stories it has to tell about the body it came from."
You can order a hard copy through Amazon, or read the Kindle version right now, and the 60 page accompanying reader's guide for adults is available as a free PDF.
But instead of just buying it, what I really want you to do is make sure your local library orders it if it hasn't already!