Answer: books represent knowledge. He is threatening because he has read a lot of books.
Explanation: I’ve read this book before.
It is a noun that makes up a group like for example crowd, family, team, etc.
The answer for this question would be:
<span>A narwhal, but ten times larger than any
previously known</span>
Confident and independent, friendly and outgoing, generous, honest, and sensible.