"In Mr. Knox's Country" (In the country of Mr. Knox) is an exciting adventure book written by the related writers Ross, Martin and Somerville, E. Oe. (Edith Oenon). This book tells the story of a young explorer who accidentally enters a mysterious world created by the famous scientist Mr. Knox. In this fantastic world, he meets incredible creatures, learns to solve difficult puzzles and collects crystal keys step by step to reveal the secrets of this mysterious place. "In the country of Mr. Knox" is a book that fascinates with its atmosphere and stunning plot, transporting the reader to the world of fantasy and adventure.