Find The Halloween Costume

Where is my Halloween Costume? I had kept it in my room. I think that some of my friends who have come camping with me must have hidden my costume. This place is very scary but I have no choice but to explore the place and even solve some puzzles in order to find the costume because without it my Halloween Night will be ruined. Look, I have found this item that I think can be useful. Perhaps I will have to find many more of them and use them very intelligently. The scary sound is making the situation even scarier but I cannot allow fear to take over.