C971 Rubin
[Ding! Observing the ancient palace, History + 1!]
When they arrived in front of a huge stone slab, they were immediately attracted by the engraving on it.
The stone slab was about three meters tall and five meters wide, and it was placed in a side hall.
Through the glass window, they could see that the stone slab was engraved with a strange scene.
In the picture