“The Invisible Planet” is one of the most recommended books for children to read. This book was written by Geronimo Stilton. The person who brought Geronimo Stilton to life, or rather who knew him and with whom he worked (self-said) was Elisabetta Dami, an Italian children's book writer. When published in Italian, they were simply phenomenal, meaning that they were translated in record time. They are currently in 49 different languages ​​and have sold millions of copies worldwide. Few know that Elisabetta is a rather adventurous woman, to the point of having a pilot and parachutist license, traveling alone around the world and participating in survival courses, rallying in the Sahara Desert or crossing Africa on off-road, participating in ultramarathons through Sahara and New York Marathon. Geronimo Stilton's books fall into the adventure genre. And that is that in all his books there are travel stories, fictional worlds, history, etc. One of the hallmarks of these books is that they are not only entertaining, but also provide historical, cultural, and convention values ​​data (something few books do nowadays). As for the recommended age for reading these books, it is best from the age of 8, although many children read them earlier. Usually from the age of 12-14 they stop liking it. Synopsis: There is a strange planet appearing and disappearing from the radar on MouseStar 1! Geronimo and the crew land on the mysterious planet to investigate. When they arrive, they discover the aliens who live there are hiding a secret. Can the crew solve the mystery and save the planet before it's too late?