From the Introduction:
A mysterious figure, the Traveller, appears in places of conflict and trouble. He solves a mystery or clears trouble, then disappears again. Nobody knows where he comes from or where he is going to. Sometimes he appears as a woman, sometimes as a man. He may or may not have psychic powers. There are speculations about his origin, but so far his allegiance remains a mystery. There seems to be no bigger agenda behind his actions. He helps both those considered good and those considered bad.
The Traveller is a storytelling games in which no dice or a game master is needed during the play. In the setup phase a single 1d10 is used if desired. Every players needs 3-10 tokens depending on a desired length of the game.