Reviewed by Alex C. (age 9)
This book is a companion to A Wrinkle in Time. This series takes its characters into different worlds, different times, and different dimensions. In this adventure, Meg travels to another galaxy, and also to the micro world of her brother's cells "the mitochondria" in order to save him from dying. When Meg had to pass three ordeals to save Charles Wallace, it reminded me of the three trials Harry Potter had to complete in Harry Potter and the Goblet of Fire. Both Meg and Harry had to use their wits and courage to finish the tasks and achieve their goals. Meg's goal was to save her brother; Harry's goal was to win the cup. both stories also have evil forces that are trying to destroy the lives of a boy with special abilities. My favorite part is when Meg and her friends somehow get inside Charles Wallace's mitochondria through a mystical creature called a cherubim. Can you imagine being inside somebody else's body?!
I was amazed to learn about mitochondria and how important it is to our body. Did you know that mitochondria are tiny little organisms living in your cells? I didn't, until I read this book. I really recommend A Wind in the Door to all advanced readers who are interested in science, science fiction and fantasy - but make sure you have a dictionary next to you at all times!