What did corrie sneak into prison In the book called?

In the book "The Hiding Place" by Corrie ten Boom, Corrie sneaks a Bible into the prison where she and her sister Betsie are held. This act of defiance becomes a source of strength and hope for them, allowing them to share their faith and encourage fellow prisoners despite their dire circumstances. The Bible serves as a symbol of resistance and spiritual resilience during their imprisonment.