"Heart of a Hero" is the second book in the Global Search and Rescue series. Like other books by Susan May Warren, there is a main plot storyline and then a subplot storyline that follows a different character. This is Jake and Aria's story, but we also get some of Ham's story. Because the books weave the stories through the different books, it is best to read them in order. It was interesting to see some of the events of "Ford" from the Montana Marshals series in this book only from Ham's perspective as this series runs concurrent with the events in that series. The book was well written and had characters you could relate with. The action just kept coming and I never knew what to expect. There was one part of the book that made me wonder about something (which is hard to describe without being a spoiler) and I look forward to seeing if my guess is correct in future books. There was quite a bit of biblical faith elements woven through the book and many great truths are shared. I can't wait to read Ham's story.