“The final frontier is not space—it is within ourselves.” — Mack Reynolds In a galaxy driven by exploration and conquest, one mission dares to reach further than ever before—toward Ultima Thule, the mythical edge of the known universe. But what the crew finds there is far more than distant stars and alien worlds. They find a challenge to everything humanity believes about time, identity, and purpose. Part space adventure, part philosophical odyssey, Ultima Thule is a bold journey into the unknown—where science meets mysticism, and the end of the universe may be just the beginning of the soul. Mack Reynolds, master of speculative thought and visionary science fiction, invites readers to question what lies beyond the stars—and what lies within.