The prisoner tucked her behind him with one hand and met the first attacker's blow, blocked it, and flung him down the hall.
The attacker fell into the pit with an abruptly short scream.
His would-be attacker was a woman.
Emergency lighting glowed along the walls, and the strange silhouettes of workout machines made her pause and wait for her night vision to filter out machine from potential attacker.
The hidden backdoors allow easy access any time the attacker wants back in.