Answer:
I have feet on my head
I am black of eye and bright of hair. I fast into the ground and follow my lord as he races around the world. What am I?
What is easy to spot but hard to find?
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
I'm simple for a few people, but hard for them to hear. I live inside of secrets and bring people's worst fears. What am I?
The answer I give is yes, but what I mean is no. What was the question?