Answer:
how many words are in those books
What goes in the water red, and comes out black?
What is weightless but takes two people to hold it?
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
When I live I cry, If you don't kill me I'll die.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.