Dream of kids, children

My dream started with me on a beautiful grassy hill with a lot of flowers. It was getting dark and I needed somewhere safe. Next I was in a room inside a cave, the dirt and rocks had a red color to them, it looked like something miners had used, there were beds and a metal door that I had locked and put stuff in front of to make sure it couldn’t be opened. My sister was there and also two younger children I didn’t know. We were being tracked by dark faceless monsters that could hear really good and were very fast, the moved on two back legs and two long arms that were sharp. I couldn’t sleep so I went over to the door and looked out the peep-hole and saw one of the monsters lurking outside. I whispered to my sister that there was a monster outside and I was going to get the gun. My sister told me to get the gun that was by her, pulled the covers back and told me to lay down and get some rest and at the same time one of the kids threw a doll by me and it hit the ground with a thud. I was irritated that my sister didn’t seem to care about the monster outside and I was scared the monster might of herd the noise but I was exhausted so I layed down with her and the kid that threw the doll came to lay with us to. When I went to lay down I felt like I didn’t have to worry about the monster outside, I felt safe.