What is the author's tone in the book, The 12th Planet?

The tone of Sitchin's book is ostensibly scientific, but in reality the tone is more like a myth or a fantasy story, one that excites and entices the reader. The story spans the history of the solar system from its beginnings to the rise of Sumer, the first human civilization. It is the story of pre-history. In fact, it's the story of everything that human beings don't know. While Sitchin's account claims to be a true story of the origin of the solar system and also of the years from 445,000 to 13,000 B.C., at the same time Sitchin's story is not a story of the real, physical world at all. It is instead a story of human mythology, set in mythical worlds of gods.