C2613 Refining Books

"This is a defensive spirit artifact from the forging tower. Once a stranger enters, it will immediately activate and heavily injure the person who enters. The old man waved his hand, gesturing for her to walk in. After a few seconds of rest, he continued, "Your message is already on there. From now on, you can freely come and go."

Gu Xiaoxiao replied and followed him into the building