C544 Exploring the ice palace

"Clang ~ Clang Clang!" Lin Feng held the Blood Drinking Sword in his hand and slashed at the surrounding walls. He realized that he could not leave a single mark on these walls.

It seemed that the walls here were extremely hard. It was unknown what material they were made of and it looked like ice, but the reality was unknown what kind of ice it was. It was truly rare for it to be this hard