What happened in the bus accident im full tilt?

In "Full Tilt" by Neal Shusterman, the bus accident occurs when a group of friends is returning home from a trip. The bus veers off the road and crashes, leading to a tragic situation where the protagonist, Blake, faces the terrifying reality of being trapped in a surreal, nightmarish amusement park. This accident serves as the catalyst for the story, thrusting Blake and his friends into a high-stakes environment where they must confront their fears and fight for survival.