A long time ago, the Order of the Jedi was founded on the planet Taiton. Learning from the wise masters, Lanori Brock comprehended the secrets and teachings of the Great Power and found her calling, becoming one of the most powerful adepts. But if in Lanori and in her parents the Force is great, then her brother is completely deprived of this privilege. The young man's training in ancient wisdom ended tragically, and he hated the j'daya. Many years later, Lanori, becoming a lone tracker, maintains order in the galaxy. The Jedi Council summons her on an extremely urgent matter. The leader of the fanatical cult, obsessed with the idea of traveling beyond known space, intends to open a space portal working on scary dark matter - at the risk of provoking a cataclysm that will engulf the entire star system. For Lanori, a greater shock than the prospect of complete destruction, becomes the decision of the masters to prevent disaster entrusted to her. But after a stunning discovery, the reason becomes clear: the brilliant and dangerous madman that Lanori must find and stop at any cost is the very brother she has long mourned ... and who must now be feared. The events of this book take place 25793 years before the "New Hope"