If you were captivated by the drive to uncover the secrets of the Heechee artifact in Beyond the Blue Event Horizon, you'll love Rendezvous with Rama. This novel follows a team of astronauts as they investigate a massive, enigmatic alien vessel entering the solar system. The sense of mission, discovery, and steadily mounting tension will keep you hooked.

If you enjoyed how Beyond the Blue Event Horizon switched between multiple characters—Robin, Wan, and the scientists on Earth—Leviathan Wakes will be right up your alley. It features a dynamic ensemble cast, each with their own goals and secrets, working together (and sometimes at odds) as humanity faces mysterious threats in space.

If you appreciated the detailed, scientifically-grounded aspects of the Heechee technology and the plausibility of interstellar travel in Beyond the Blue Event Horizon, Tau Zero is a must-read. It follows a crew aboard a relativistic starship, grappling with physics and existential questions as technical challenges mount, all rendered with meticulous scientific rigor.

If you were fascinated by the mysterious, incomprehensible nature of the Heechee and their technology in Beyond the Blue Event Horizon, you'll be enthralled by the worldbuilding in The Left Hand of Darkness. Le Guin's novel immerses you in the planet Gethen, where human and alien perspectives collide in a society with radically different norms and biology.

If you loved how Beyond the Blue Event Horizon moved between distant space habitats, Earth, and the far reach of human and alien history, Dune will sweep you away. Its epic narrative covers political intrigue, ecological transformation, and the clash of cultures on the desert world of Arrakis, making for an absorbing, far-reaching saga.