12 - Wolfbane by C. M. Kornbluth, Frederik Pohl

In the gripping science fiction novel Wolfbane, set in the year 2203, a rogue planet has whisked Earth away from the Solar System, plunging it into the depths of interstellar space. This peculiar planet is home to enigmatic machines known as Pyramids. Meanwhile, the moon has been transformed by alien technology into a miniature sun, creating a peculiar orbit between the two celestial bodies. As the narrative unfolds, the moons rekindling—a crucial event that occurs every five years—is perilously close to being overdue, igniting fears among the inhabitants that it may never be reignited again.