by Pittacus Lore
This book was a companion novel to the I Am Number Four series going into the backstory of several main characters. There are two stories about the Gaurde who are aliens that have come to earth to stop an evil race of aliens called the Mogadorians from destroying the planet. The Gaurde fled their own planet when Mogadorians destroyed it. The third story is about one of the Mogadorians and his experiences as the son of an important general.
This was a great book that showed the backstory of several characters from the series and went more in depth about the Mogadorians race as well. It's action packed and a great read. The whole idea behind the aliens in the book was really fascinating and fun to read.
I would definitely recommend this book but it would make more sense and be more enjoyable if you read the first book in the I Am Number Four series before you read this one. I started the series because of a recommendation. The whole series is action packed and great for anyone who likes a good fantasy novel.
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