Dark stone house escape

Presume a situation there is an archaeologist pursuing his Doctor of Philosophy in his field. Meanwhile, he does researches for his thesis. One fine day, he went to a dark stone house regarding his thesis work. Unfortunately, the door of the dark stone house got locked. Now it is your responsibility to help him escape from the dark stone house. This could be achievable only if you have determination. As you are the person of good decision making nature, surely you will find the necessary objects to solve the puzzles.