Story wise - this is my favorite book in the whole series! Pavel and Kayla will always be my favorite couple, but there's something about Nadia and Flynn that just gives you all the feels. They're adorable with each other. It makes you want to gather them to your chest and protect them from the outside world.Adrian's little sister. Trafficking Survivor. These titles don't define Nadia. Bad things happen to good people, but it's how you process that trauma that stands out. In Nadia's case, she's not willing to let life pass her. She realizes that she still has issues, but she's constantly working to put the past behind her. It's not all sunshine and rainbows, but she's trying. Nadia's strive to win against the shadows is what makes this whole book worth it.Oh, Flynn! It takes him a hot minute, but he realizes that the friendship he has with Nadia isn't enough. However, everyone tells him to leave her alone. By everyone, I mean several big, tall, scary Russian dudes. She's not one of his one nights, where he can hit it and quit it. Yet, he realizes her worth and strives to be a better man, but it might be too late when the past comes back to haunt him.