She ignored him, pretending as if she didn't understand his words. She looked around curiously.
Her senses immediately recognized the tiles, hospital bed, and many things from the observation room. She had fallen down to some kind of hole after she was infected by the zombie virus.
Judging from the way she wasn't eaten until only her bones were left, her zombie transformation must have been quick. Zombies didn't like eating other zombies. The main leads must have solved those zombies.
The tunnel interior had parts where they were wide enough, stretching more than five meters. And in other parts, they were as narrow as they could be.
It would have been scary if the soil and stone suddenly fell down. They could have been buried alive.
There was one thing that made her become incredibly quiet. Who was that person who had opened the door to her observation room? Her enemy or someone else? Or just a series of coincidences to push the plot?
