I Wiggled And Cannot See, Sometimes Underground

Riddle: I wiggled 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 a book. What am I?

Answer: Worm

Source: https://www.riddles.com/3059

I wiggled 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 a book. What am I? — I wiggled and cannot see, sometimes underground by 6085 v1.

Riddle: I wiggled 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 a book. What am I? Answer: Worm — by 6085 v2.