A splitting headache.
This was Li An's first feeling after regaining consciousness.
What followed was a stiffness and soreness in the back of his neck and back, as if he had slept on his stomach on a hard board all night. His nostrils were filled with a strange smell mixed with old paper, inferior ink sticks and a faint musty smell, which made him choke and couldn't help but sneeze.
"Ah sneeze!"