I read this book as one of the books for my summer reading, and this would be the second time I have read it. I have read the first book in the series, (A Wrinkle in Time) and I liked this one just as much, but in different ways. The first book involved tessering (a form of teleportation that involves traveling through the fifth dimension) to different galaxies, trillions of light years away from earth, and so on, but for some reason, on one of the distant planets they visit, the inhabitants look a lot like humans, so, compared to the first book, the second book is a tiiiiiiiiiny bit more realistic. The setting of the second book only actually leaves earth once, to a place called metrion astrion, and the grand climax takes place on earth, but inside one of Charles Wallace’s mitochondria, because the inhabitants of his mitochondria, the farandolae, were talked into killing the fara on the mitochondria by the evil Ecthroi, hence killing Charles Wallace. There were some new characters introduces, such as Proginoskes, a singular cherubim, a creature largely composed wings and eyes. It annoyed me a little that nothing from the first book was mentioned at any point in the second book. It also bugged me a little that several chapters might be spent describing one event in the book, and less than half a page describing the next event, but other than that it was excellent.