Erebos is a gripping young adult thriller by Ursula Poznanski that immerses readers in the dark world of a mysterious computer game. The protagonist, Nick, is captivated by Erebos, a game that is passed hand to hand at his school. The strict rules of the game require players to play alone and keep their experiences secret. Anyone who breaks these rules or fails to complete the assigned tasks is excluded from the game. Particularly disturbing are the missions that Erebos issues in the real world, culminating in a shocking command that tests Nick's moral boundaries. Since its release, Erebos has established itself as a modern classic and has been awarded the German Youth Literature Prize. The gripping plot and profound themes make it an essential work for anyone interested in the allure of online role-playing games and their impact on real life.