Sam stood his ground after the initial jerk of the excessive gravity.
It is not something he cannot handle, he was caught off guard because of the way he fell into the room. Once he got his balance back, he looked around. The whole room looked squeaky clean.
Cleaner than its original state.
All the inscriptions are dissolved into the walls.
Sam activated his energy vision and looked around. The walls still looked clean, but when he looked at the ground and ceiling, he saw small portions of both glowing. The pattern of the glow is same shape as the runes inscribed.
It seemed like the other party didn't think too much and just believed that the inscriptions are hidden properly.
Sam took out his inscription pen again and first levitated to reach the ceiling.
As he placed the nib on the glowing inscription pattern, a few sparks rose.
*CRACKLE*