The intermittent notes abruptly stopped here, leaving deep ballpoint pen marks on the paper.
It seemed that the person writing the notes had to stop for some special reason.
"Professor Bo, it looks like this is a horror-themed escape room?" Qin Yiren flipped through the notebook and memorized two numbers mentioned inside, "I guess there might be a safe or something like that nearby."
Behind her, Bo Jinghang examined the ordinary bookshelf, raised his hand to knock on one of the shelves, and his slender fingers lightly scraped along the edge. He soon opened a secret compartment, which housed a small safe.
With a small curve on his thin lips, Bo Jinghang chuckled and said, "Miss Qin, you guessed right."
"But I only found two codes." Qin Yiren was pleasantly surprised to see him locate the safe in his first attempt at playing, "Hmm, the code has four digits."
"Hmm..."
