Answer:
This is needed both for courage and hardcover books.
Someone walked into a room and you heard a crash! Someone died. What happened?
Long and slinky like a trout, never sings till it's guts come out.
What has two spines and a lot of ribs, and carries much but never moves?
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
I have two eyes in the front and a lot of eyes on my tail