Jude and Rhion are both holding onto and hiding scars from the past. Their paths cross through Guardians Security: Jude is the newest hire, and Rhion is friendly with the whole crew. As they get to know one another, the chemistry explodes and they are pulled together, just as they are pulled apart with their pasts, their issues, and the other people in their lives. 
 The chemistry between them fires up quickly and is sustained despite the challenges each face. No one in Rhion's life has seen her open up to anyone so quickly, which immediately puts her best friends on edge. I love those in her inner circle and the protective way they stand up for her and watch out for her, even against one of their own. 
 This was woven far deeper than I was expecting. The twists that popped up were as much unexpected as they were fantastic. Each new curve sent the characters reeling as much as it did me, and made it nearly impossible to see the ending before it arrived. I loved the aspect of surprise each time something new was revealed. It has been a while since a book's twists have caught me so off guard as the twists in Singe, and even looking back with hindsight, they are masterfully crafted to come as a surprise. 
 The side characters added a great element to the story. Not only the men of Guardian, but the other characters as well. Some friendly, others villainous, each added a depth to the story that gave it life and excitement. I loved the treatment of Val, both in the way Rhion took her under wing, and what is said about Jude's character. She was a bright spot during those brief moments she was around. 
 This is a great group of characters, some familiar, some brand new, and I look forward to getting more of each man's backstory. Even as Jude is the new guy, the men of Guardian are a family, and though Jude has to take his hazing, they quickly fold him into the family. 
 This is one of those books that captured me from the beginning with its pain, its tension, and its hopefulness. Hopeful isn't normally an emotion paired with pain and tension, but through the story is a thread of hope for Jude and for Rhion. Hope that they can heal, hope that they can move on, hope that they can be together. 
 I was gifted a copy in exchange for an honest review.