"Secret Martians" is an exciting science fiction book by the famous author Jack Sharkey. In this book, go on an exciting space journey with the main characters who try to solve the mystery of life on the Red Planet. The story is full of incredible adventures, mysteries and great discoveries. The author successfully combined scientific facts about Mars with his own imagination, creating a unique world in which readers will be able to feel the true atmosphere of mystery and the unknown. "Secret Martians" is a book that will leave a mark in the heart of every fan of science fiction.