What is the author's style in The Tracker by Tom Brown?

The story takes place in the Pine Barrens, a wild and desolate area in New Jersey. As Brown points out, most people consider the Pine Barrens to be dangerous and frightening territory, mainly because it is so unpredictable and wild. However, with Grandfather's training, Tom and Rick learn to navigate the Pine Barrens as easily as many people move around in their own homes. Even when threatened with severe weather, packs of wild dogs, or hunger and thirst, the boys learn to use excellent wilderness skills to master the challenges of the Pine Barrens. To Tom Brown, it is the ideal way of growing up. He admits that if his parents were to know how far he travels during these years, and through what risks, they will have been horrified.