About the book: 2004 / Brothers - martial arts masters and experts in survival in extreme conditions - were not prepared for what awaited them in the cave behind the waterfall. In in the parallel world where they found themselves, shining dragons, obedient to their riders, circled in the air, scaly red-eyed unicorns helped soldiers in black masks kill and drive into slavery the inhabitants of quiet villages, and the spirits of the killed returned to take revenge on their enemies.