Mysterious events shake the local civilization. It seems that sorcerous powers and magic are at play. Several assassinations attempt on Sigurd, which he survives only because of his special abilities, convince him that he must join forces with the new MBF organization to solve the mysteries. His top priority, however, is to find the organic ship PAURUSHEYA, which also mysteriously disappeared 250 years ago. In a forgotten and impenetrable part of the world, in the middle of the dense Honduran rainforest in the region of La Mosquitia, Alethea and Sigurd come across the legendary city. Through the "Ring of Srem" he and Alethea, the former material hologram and avatar of the spaceship Paurusheya, are transported to the energetic half-world of the Zetschn'cha. There is the Hemisphere, the refuge of the mage Sol'altoo, the sole ruling tyrant.
