The Sword of Summer is by Rick Riordan, who you probably know is the author of the Percy Jackson series. The cover of the book is AMAZING, and I picked it up and started reading it in no time. I will admit, the chapter names are very interesting but I love it! I hate how Rick Riordan put a cliffhanger on the end of this book, but that's the reason I love it and why I was excited to read the next book of this series (which was also great!!). I like this series better than the other Greek mythology series that Rick Riordan has written, and I'm excited to read the next book in this series if he makes another one. I rate this book 5/5, and recommend it to ages 9-16.