They all stared at her, unsure of how to react. They all knew now what she was capable of, and none of them - not even she - could predict when her careful control would finally crumble. They gambled with their lives every day they kept her here.
Great idea for hiding guns in the house if you don't have a gun safe. Or even other items you want to keep safe! It took me a little while to understand this. The shelf unit slides behind a mirror. I thought it was a passage to a hidden room.