I literally pre-ordered this book the day it was announced. A mash-up of two of my favorite 'verses? Oh, heck, yeah, I am all in!
As mentioned, I am a HUGE fan of both Demonica and Masters and Mercenaries. That said, I had a bit of pause considering how well these two worlds would work together. I shouldn't have worried. Ms. Ione jumped right into the M&M world. One of my first notes in the book was, "Larissa totally gets Ian!"
Suzanne was delightful. Positive and happy, infusing that into everything and everyone around her. Declan was...not a people person, let's say. I loved how Suzanne tried to entice Declan, who was determined to stay in the "I'm the bodyguard" lane. (Spoiler alert - he swerved)
The book is Demonica-centric, so I'm not sure how it will translate for folks who aren't familiar with the world. The story itself stands alone, but you will most likely be intrigued by the incredible 'verse that is Demonica, which is not a bad thing.
For Demonica lovers, Her Guardian Angel is a must read. The arc advances pretty significantly. Plus, you get to meet Ian, if you aren't familiar with Masters and Mercenaries. Ian is very much like a non-demon Wraith, with a passion for lemon desserts. Trust me.
Bottom line - Any day I get to spend time with Ian is a good day. Any day I get to spend with Ian and Wraith? Well, I don't even know how to describe the happy! The story is sweet and fun and a little scary (demons with a revenge mission). I loved this collision of worlds!