An abandoned factory was left by its previous owner leaving several valuable properties therein. The owners now wanted to recover these properties and since they cannot do it on their own, they decided to employ your services as being an expert in this kind of matters. You thought the job was easy but it was not for the reason that the entire factory is so big that it would take a considerable amount of time by just circling around its perimeters. But still you have to do the job. Good luck!