Because he killed Lo-Pan, he unknowingly inherited dark magic bond that the sorcerer previously put onto one of his loyal demon, a yeti-like beast that sneak onto his truck. He thought that the demon wanted to avenge its master's death, only for it affectionately lick him and offerred its servtitude to him. So, he consulted to Egg Shen and went for another adventure where he need to do something on the bond between him and the demon.