My reaction when I bought this book? Complete and total fangirl freakout(Consisting of squealing, screaming, yelling, dancing, giggling, and thanks the gods- Both Egyptian and Greek -that I had the money to buy it). 
 (view spoiler)[Unlike Riordan's other stories, this one is a short story. The difference between a short story and a book/novel is this: It is visibly shorter. So if you buy this book and end up upset that it's short, it's your fault. Because in the blurb/description, it actually says that this is a short story. Therefore, do not throw a hissy fit because it is short. It's a short story. Hence the 'short' part! (hide spoiler)] 
 In this short story, Rick Riordan has made two of his protagonists, each from different book series and worlds, meet. Who are they, you ask? Carter Kane, head of the 21st Nome in Brooklyn. And Percy Jackson, son of the Earthshaker and hero of the second Titan War. ((No, I am not favoring Percy by putting that he's a hero. Carter's one too! He kicked snake booty.)) The story takes place on Long Island, where the two protagonists meet. 
 Now, I'm willing to bet that you think the plot is very complex, because it's an Egyptian and Greek together. You, sir(I do not care what your gender is), would be wrong. The plot is simple, exciting, and made me unable to stop reading. Carter's investigating the Island when he hears about a monster sighting. There, he meets Percy, who is also trying to find the monster. The result? The two boys end up working together to stop the beast before it eats everyone. 
 Okay, one of the things I love best about this book is.....It's told from Carter's Point-of-View!! And no, that is not a spoiler. I loved seeing Percy through Carter's eyes. It was just...Wow. Also, it's been so long since the Kane Chronicles series ended(About a year. But hey, that's long!), so I really enjoyed reading about/seeing him. :3 Carter is such a strong character and I feel like I can relate to him the most..At least with his personality, I can. 
 Another thing I loved about the book was its humor. Oh my gosh, I loved its humor!!!!!!! It was full of hilarious moments that made me laugh so hard, I had to worry about being too loud, because someone in the room across from mine was asleep. :D :D :D :D