Marbles on Glass

17. Advanced

The test chambers in Chell's nightmares are even harder.

While the routes are the same, the rest never is. Whole floors turn into acid seas, friendly surfaces go black with metal; her mind makes up caged turrets and moving platforms, making it worse, much worse than it ever was.

Naturally, she also dreams of countless failures.

She dies so many times it makes her dizzy — when she wakes up, she is always surprised that she isn't coughing up blood. She breathes in hungrily, terrified at the memory of those challenges alone.

Maybe she has had it easier than she knows.