Newgrange is a prehistoric attraction of Ireland which is a must see during a trip in this country. As you spent this summer in Ireland at your relatives, you couldn't miss visiting this awesome attraction. Even if it's well known, there are periods when very few people goes to visit, as it's kinda hard to get there. So you went on a day when no one else was there beside you. This made you more curious and you entered inside to take a closer look. Bad idea! You got trapped and there is no one to help. Find a way out. Best of luck!
Walkthrough for Escape from Newgrange