"Well, you are welcome to just install a simple hidden passageway like the rest of us. No one asked you to overdo your whole charade," the man said.
"Come on, what's the fun in that? In any case, you may come in," the voice responded.
Suddenly, a door mysteriously appeared on the wall, being invisible until that very moment.
"I'm with a visitor. Hope you don't mind," he said.
"As long as they are from you, it means they are trustworthy. If they aren't, then they simply won't be allowed to escape."
Karla gulped as she heard this. However, she calmed herself and maintained her calm demeanor.
The boss walked toward the door and opened it.
"After you," he told her.
She nervously obeyed and walked into the room. After she did this, he walked into the room too, closing the door behind them.