Stealing the Dragon's Heart had a complex enough plot, character development, and sex scenes to hold the attention of the reader who wants a little bit of everything. The slow burn between Aidan and Onnika sizzles throughout the entire book. I do wish there were a few more hot scenes between the two of them. The plot and the crew of characters help bring this rather large world to life. While I realize this is part of a large series, reading this as a standalone is fine too. I haven't read any of the other books and I found it easy to understand.