Where is the head of the giant Chukenkin, the descendant of Iondia 3?

Raiders is right, maybe you don't know what it means. In fact, I told you to turn left when you get back to the lost city, and that's the mountain of giants. When you enter it, you will trigger Kenkin's mission. It will let you choose whether to kill or not. I suggest you choose not to kill (the second one, don't make a mistake), so you can do one more task. After completing the task, he will help you make a fake head and give you a spell, which can be used to beat half of Yinlong's blood.

I hope my answer is useful to you.

Have a good game.