Passage to Planet X

"Passage to Planet X" by Henry Hasse is a science fiction novel likely written in the mid-20th century. The story revolves around a group of adventurers seeking a legendary world beyond Pluto, known as Planet X, filled with the promise of adventure, freedom, and wealth. It reflects the era's fascination with space exploration and adventurous quests into the unknown. The plot follows Mark Travers, who stows away on a spaceship led by the enigmatic Commander Janus, aiming to escape the oppressive influences of an agency known as BINWI. As the crew journeys through space, they not only face the dangers of their clandestine venture but also encounter an extraordinary new world populated by humanoid beings known as Perlacs and strange robots. Their ultimate goal turns into a struggle to defend the civilization on Planet X from the Perlacs while uncovering the secrets of a powerful artifact known as the Stone. The climax involves intense battles, clever technological advancements, and the unique twist of Ketrik—a legendary figure who has transformed into a robot. The narrative blends action, science fiction, and adventure, exploring themes of ingenuity and survival in an alien world. (This is an automatically generated summary.)

Henry Louis Hasse was an American science fiction author and fan. He is probably known best for being the co-author of Ray Bradbury's first professionally published story, "Pendulum", which appeared in November 1941 in Super Science Stories. Hasse co-authored two more published stories with Bradbury: "Gabriel's Horn" (1943) and "Final Victim" (1946).