Leo froze. The past tense of to work ? Worked . But a tool? No.
"You are in a room with no windows. The only exit requires a password. The hint is: 'The past tense of 'to work' is also a tool for repairing a PDF.'"
The voice returned, now soft. "Excellent. You have used context, idiom, and lateral thinking. Your English level is: Operational Proficiency. Session complete."
A minute later, her reply arrived. It contained only three words: "Well wrought, Leo."
Leo exhaled. He emailed the fixed PDF to Mrs. Gable. Subject line: