Havemercy - Danielle Bennett, Jaida Jones

And technically, there were mechanical dragons in the book, but they were more props than the characters they deserved to be.

 

 

The book was basically two parallel stories written together, each with their own pair of characters.  The separate storylines were a bit too separate for me, while being smashed up right against each other.

 

Good book, but not on top of my "I need to finish this series" list.