C289 Past Experience
It looked as thin as a cicada's wing, but the surface was abnormally tough. Zuo Feng even felt as if his hand was inserted into an iron plate. He used all his strength and gathered all the psychokinesis in the phantom's arms before he managed to break open a pocket sized hole in the membrane.
What made Zuo Feng most depressed was that this cave entrance was not like an ordinary lifeless object