C91 The Crying Sound Was Actually a Zombie Infant, and the Books in the Library.(1)
After the brief interlude, Tang Bing secured evidence of the zombie baby. He pocketed his phone and meticulously inspected the bookshelf.
The regular books on the shelf offered no clues; only special skill books triggered a notification. Although most of the bookshelves yielded no response, Tang Bing eventually found several skill books he needed