A boy named Thorin lives on a farm with his adoptive parents and a pet, Bugle. The boy is a descendant of the rulers of a fantasy country who died and were adopted as a baby. Soon the young man gets tired of his measured life and the hero of Torins Passage really wants a change. Suddenly, an evil sorceress kidnaps the boy's parents. After questioning one old man, the boy learns that the kidnapper is the evil ruler of the lower spheres named Lisentia. The character goes to a dangerous place to find the sorceress and her relatives.The main characters of the old-school adventure:
- Thorin is a brave and nimble fellow, a child of the rulers of the Upper Spheres.
- Bugle is a purple creature, like a catdog, that can take the forms of previously seen objects and has become the boy's pet. Having fallen into the Darkness, Bigpaw kidnaps the creature.
- Prestupen - a traitorous uncle who killed the protagonist's family and wanted to kill him in infancy, but the baby was saved by Lisentia. Disguised as an old man who pointed the young man to the sorceress.
- Lisentia - the boy's nanny in childhood, who saved him from Prestupen, but the villain pinned his misdeeds on her.
- Lina - a human, the princess of Rubezh, and the daughter of Thorin's adoptive parents. The guy saves the girl from captivity in Lilliput and falls in love, and sends her back to Rubezh.
The character will have a long adventure through five worlds, which are located at different depths of the planet. The first world is presented in a fantasy setting, where the protagonist himself lives. Next comes a mountain world, inhabited by mischievous shorties. The third has huge trees, where the Lilliputians live, who will take the boy prisoner. Then the gamer will have to go through a scorched a desert where there are many lava rivers. The fifth one looks normal, but the local plants are not averse to talking. In the process, the boy is helped by a pet that gets into hard-to-reach places and brings useful items.