A Lucrative Deal

Everyone jumped to their feet.

"Zombie crystal core extract?"

"Really?"

The old man's hands were already trembling. "Ms. Voss, how can a zombie crystal core even be turned into an extract?"

Ever since they had accidentally discovered zombie crystal cores inside the brains of Level 2 and higher zombies, they had been researching them.

But these crystal cores were as hard as diamonds. They couldn't