Three girls - Amelia, Mila, and Leona - are trapped in a prison cell after being wrongly accused of robbing a bank. The warden, who is open to bribes, gives them a wrench, which they use to loosen the nuts on the sink, revealing a hidden compartment. They find a password and use it to unlock a secret passage.
In the passage, they discover a series of puzzles and games that they must solve to escape. They find a cross that doubles as a tool, a camera with a hidden compartment, and a tic-tac-toe game that reveals a code.
The code leads them to a safe in the warden's office, which they unlock to find a hammer that doubles as a laser. They use the laser to reveal a hidden message on the ceiling, which gives them a code to unlock a box.
Inside the box, they find a chess set and a series of clues that lead them to a specific move - 6F. They use this move to unlock a compartment, which reveals a key. However, the key is too small for their cell door.
They then discover that the key is actually a hint, leading them to a series of flasks in the warden's office. By solving a puzzle involving the flasks, they reveal a hidden coin, which they use to unlock a mechanism that floods their cell.
The flood reveals a hidden key, which they use to unlock their cell door and escape. They take the money from the safe and make their way out of the prison, finally achieving their freedom.
Here are the key facts extracted from the text:
1. A person is in a prison cell and is talking to someone else in the cell.
2. The person is told to sit down and think about their behavior.
3. The person is given a wrench by the warden in exchange for $100.
4. The wrench is used to loosen four nuts on the sink.
5. A pipe is found in a secret passage.
6. A mirror has a hole in it that matches the width of the pipe.
7. The pipe is inserted into the hole, and a shadow falls on the number 3 on the ceiling.
8. A code is discovered on the ceiling, consisting of the numbers 3, 5, and 7.
9. The code is used to open a safe in the warden's office.
10. Inside the safe, a hammer and a laser are found.
11. The laser is pointed at the ceiling, but nothing happens.
12. A chessboard is found, and a game of chess is played.
13. The chess pieces are used to reveal a hidden key.
14. The key is used to unlock a door, but it's not the right key for the main door.
15. A new hint is discovered, leading to the boss's office.
16. Three identical objects are found in the boss's office, along with a coin.
17. The coin is used to activate a mechanism, causing water to flood the cell.
18. A hidden key is revealed in the water, and it's used to unlock the main door.
19. The person escapes the prison cell and finds freedom.