** spoiler alert ** 
 I thought this book was so amazing! It had all the sarcastic and hilarious narration that we know and love from Rick Riordan, as well as an older main character, who though his origin story is similar to Percy Jackson, I find much more relatable than him. Magnus was a funny, cool guy whose relationship with his mom and deity father gives him a genuine appreciation for nature and compassion, which I found to be very refreshing and appealed to me on many levels. 
 Another thing I though was absolutely spectacular was his "version" of Annabeth to Percy, Samirah al-Abbas, Magnus's kickass Valkyrie. While I was reading I was thinking to myself how Rick Riordan should really make an effort to diversify his character, he gave me the jewel that was Sam. As an Iraqi living in the US she faces discrimination and bullying (which she talks about), but she also faces discrimination as a daughter of Loki. I think her journey, that we'll continue to see, of her embracing her parentage and the gifts that it gives her is going to be very interesting, as well as just the perspective she brings as an Muslim-American hijab-toting teenage girl who is happily in an arranged marriage. 
 Also, the two non-human sidekicks were super entertaining and interesting, Blitz with his fashion sense and creativity, and Hearth with his badass magician self. Hearth's deafness was such an interesting and enticing part of his character and his interactions, and I loved it. He does fall into the category of disability counteracted with superpowers, and I hope Riordan will work to not fall into that trope in the next books. 
 The Norse deities were also very fun, favorites including Freya, Frey, and Thor. Like all Riordan written deities, their personalities and idiosyncrasies are entertaining and fun, and make the plot so much more rich. 
 Also, the inside jokes and pop culture references? Unbearably hilarious. The Chase being cousins with Annabeth Chase? Flew over my head until I started reading, which I couldn't believe, and was so fun to me as a reader of all things Riordan. I love the way he intertwines the worlds and God-systems, and the play between them. Though I hope that Magnus and Annabeth interact more, I do love the way he kept it in separate stories for the Kane Chronicles. Perhaps a book series just filled with the moments that demi-gods find others and the resulting friendship? I would ADORE IT. 
 Overall I thought the book was spectacular and I can't wait to continue the series!!