This question sparked another thought in Ariana's mind.

“Why did he leave?" she asked. “A mad scientist like him would usually get mad if his subjects tried to escape, wouldn't he?"

“Who knows? It's better for us that he's gone," Adrian replied, his attention shifting back to the keypad.

Their goal was clear: they needed to escape and find Holden. Ariana understood this.

Adrian punched in codes repeatedly without success until, suddenly, the keypad chirped a triumphant sound.