The Guardian sighed, leaning against a particularly thick "Conditionals Type III" sentence. "The GDZ is a powerful potion, Misha. It gives you the '5' today, but leaves you silent in London tomorrow. If you copy the answers, you will never know the joy of correctly placing whom in a relative clause!"

"Stop!" the Guardian squeaked. "You seek the GDZ (Key), don't you? The forbidden scrolls of pre-written answers!"

Misha sat staring at Exercise 452. His mission was simple: transform fifty sentences into the Passive Voice. But the book was tricky. It didn't just want the answer; it wanted to know if Misha truly understood why the cake had been being eaten for three hours before the guests arrived.

Suddenly, the book began to glow. A tiny, ink-smudged figure crawled out from between the pages of the "Sequence of Tenses" chapter. It was the , wearing a hat shaped like an irregular verb.

Misha froze. "I just want to go outside and play football. I’ve been stuck in the Present Perfect Continuous since Tuesday."

He was still working on his tenses, but at least he wasn't a ghost in his own homework.