"Buzz, buzz!"
Half an hour later, "it seems that this chamber of secrets is really a chaotic practice room and research room. He took all the walls around him as sketches to think about new skills. As soon as he had any ideas, he engraved them on the wall through true Qi!"
"Quick, scan all the traces on the wall, transport them back to the wall, and then let the experts analyze them carefully, trying to find out some useful secrets!"
On the four walls, there are still a lot of chaotic thoughts and ideas. In addition to these, there are a lot of beast like claw marks, which destroy many words and formulas.
Many claw marks, deep into the wall a few meters, like extremely violent beast, crazy hair, residual.