Mr. Henderson, lost in a trance about ‘x equals negative b,’ didn’t notice a thing.

Under the desk, his fingers flew. Proxy. Mirror. Wayback machine. Nothing worked. The wall was too thick.

Room 204 was a digital desert. Every game site, every flash-based relic, every .io domain was a barren, blocked wasteland. Principal Harrison had seen to that. His new firewall, "The Great Wall of 6x," was legendary. Students called it the "Fun Vacuum."

Leo grinned. Monkey Mart.

Then came the rush hour.

The sound wasn't from the game.