Bab 1439: The Jailbreak Begins. She’s Not Forcing Them

Accidentally? She had just accidentally unlocked the security lock?

The others were shocked.

The front of the dungeon cell was a door with a security lock on it. The lock was constantly monitored by a computer program and would only unlock when it was Glenn's fingerprint that was pressed on it. Otherwise, the security lock would trigger the alarm if someone pressed it three times.

They could only dream about escaping because the guards of the dungeon would find out and rush to them. 

Usually, if the alarm did not ring, there was no guard patrolling the area. Aside from the security lock, the cell was incredibly secure that one could not destroy it even with a bomb. The material used to build the dungeon cell was only a little more inferior than the material used to build the dungeon door, so Glenn did not have any plan for anyone to patrol the dungeon.