Who was pulling the strings?

He panicked as he looked around everywhere only to find the window at the top from which he could escape. Aldrich tried lifting a box so he could make an escape. With all the strength he had left in his body, he lifted a box keeping it on top of another. He then climbed on it to check if he could reach the window. 

"Where are the keys to this room? Someone is definitely inside. I can some sounds coming from this room." 

Aldrich rushed on hearing that because if they do not find the keys soon, they will certainly break the door to enter. And he hardly had any time to deal with anything at the moment. Luckily, he reached the window and pulled his body up to get outside. 

To his surprise, no guards were guarding the castle from outside. He saw no one around at a miles distance and wondered if fate was on his side. Finally, after struggling with pulling his body outside, he finally jumped and had a rough landing on the ground.