From publisher blurb:
Vorin is a one page scenario, which means it’s a world built to be used for Role-Playing Games (RPG) written in one single page. To play you’ll need to choose a high-fantasy RPG system, one player to be the Game Master (GM) and 2 to 5 players to play the roles of the characters, known as the Playable Characters (PC).
Vorin is a magical tree that gives life to the whole existence of two worlds, the Overworld and the Underworld. The Overworld is full of life and joy while the Underworld is destined to be used as the penitence for those who get banned from the Overworld.
The tree’s magical fruits are enough to empower a single being beyond the limits of existence itself and for this reason they are guarded very strictly but maybe this power is close to be endangered.