I very carefully stayed off Goodreads from the moment I got the book until I finished reading it. I look forward to having my opinion in rereads influenced by what others think but for the first read I wanted to have my own reactions in isolation.I think the core of this book was about trust. Ty and Zane learning to trust each other emotionally. Or, maybe, not learning so much as finally just taking a deep breath and taking the plunge. The learning curve occurred in the earlier books. And, of course, they've already developed complete trust in the other having his back in any dangerous situation.Trust between old war buddies: Burns and Jonas, and of course, Ty and Nick. When Jonas comes to Burns at the beginning of the story with an outrageous story and no proof, Burns trusts him implicitly because of their history together. Later in the book we learn more about Ty and Nick's history, and better understand the trust between them and why it's an unshakeable bond. There are enough parallels to help make clear, I think, the depth of the trust between Burns and Jonas.When Zane finally talks to Nick, we see a trust develop between them. A trust that they both love Ty, both want what is best for him, and both agree that is clearly Zane. With that understanding and trust, the door opens for Zane and Nick to become real friends, too. I was never a Nick-hater after the last book, feeling sympathetic to his circumstances. I was glad to see my trust borne out in this book.There's also the trust between Julian and Cameron. Cam trusts Julian to take care of him, trusts that if Julian says all is well (or will be)... he knows Julian well enough to know that might not be true in the moment, that Julian may just be trying to protect him and keep him from worrying. But he has enough trust in Julian's intent and ability to care for him that even when he knows Julian is lying, he can still trust him. And Julian trusts Cameron to assist in that protection, to not be a liability. Eventually, Ty and Zane build a trust with Julian that they're all on the same side: wanting the four of them to make it to DC alive.There's also Ty's trust in Burns, complete after growing up with the man as his father's best friend and honed over years of working for him. Zane also trusts Burns, based on his own history working for him. So even when circumstances might suggest that Burns could be betraying them, and possibly trying to kill them, they ignore the evidence based on the trust of years.One thing I didn't understand was why Preston wasn't following the foursome from the very beginning, to assist Julian in escaping from Ty and Zane. I know they said Preston would watch the cats, but based on their history I really expected Preston to make some sort of arrangements and then be hot on their heels. Also, I kind of expected Ty to have more reaction to Jonas' betrayal, but perhaps we'll see more of that in the next book.Miscellaneous thoughts:At the risk of psychoanalyzing without a license, but knowing some of the circumstances about how this went from being a co-authored series to a solo one, I imagine trust and betrayal of trust was very much on Abigail's mind as she wrote it. I know a lot of the plot changed when it became a solo work, and I wonder if the trust theme is new or was part of the original plot.This book answered most of the open questions from the last one, about why Ty left (and where he went), about Nick, about that darn necklace from F&C.It was great spending more time with Deuce, and seeing what he's up to. It was also fun to visit his home and learn a bit more about him that way.I loved the tenderness Ty and Zane finally allowed themselves to display. And how they really started to settle into becoming a true couple. I think they had reached the point of (to put it crudely) shit or get off the pot, when romantic relationships either end or deepen into something lasting. I had assumed it would last, given there are several more books in the series, but it's one thing to assume and another thing to witness it happening so beautifully. I loved seeing them really talk and open up to each other finally.And, needless to say, I'm delighted that the wait for the next book is only a couple of months. Of course, even that is still too much! But maybe not, as I think it's good to have some time to digest between the books. So the time between this release and the next one is probably just about perfect. Dare I hope there will be a similar spacing between books 6 and 7?