This book is a lot further on in the series that started with Stallion King. I haven’t read any of those in between, and though some parts of this story hint at what happened in the other books, it didn’t matter much. It’s about two kids on a ranch who find that a wild horse from their range is missing. Not just any horse, but the black stallion they call King, prized for his good breeding. They go looking for him- several chapters in the book are just the kids riding around and around with a ranch hand, searching for any sign of the horse. They find lots of carcasses, but none seem to be King. They start to have suspicions of what happened to him, but can’t prove anything. Really stubborn kids- won’t let the issue go but keep trying to figure it out, and follow down all their leads, and eventually they do find the horse in the end, but then they are unable to claim him. Until their ranch hand, the South American guacho, uses his horsemanship skills to help them out. It was a good story, but slow going for me. I read plenty of easier books in between chapters of this one. Not sure if that is just because of my still slow-recovering brain, or that it was a tad boring in parts- being mostly about the ranch kids trying to solve a mystery, rather than anything actually about the horse himself, until the final few chapters. Funny that while I thought this one was a better told story than Stallion King (being unabridged), personally the first one appealed to me more.