The thought of his life being endangered completely infuriated the old man, who was unable to contain himself any longer.
If perhaps he had any thoughts of not going all out, or underestimating his opponent, he no longer did.
Right now, he wanted nothing more than to make Eric suffer each and every second of his remaining life.
With these thoughts on his mind, he didn't waste his time anyone, and immediately brought out a claw from God knows where, and he hacked at Eric's head.
If Eric went through with his attack, he would surely injure the old thing badly, but at the same time he was going to suffer a terrible attack himself.
After that, it would be a question of who was stronger, and who had a better body resistance to injuries and the pain they caused.