Sathya

Thanks a lot for the help. I'll check and make sure I put more torches up in the room and I'll update you if the issue persists.

There are two scroll bars so that you can look around the image. The arrows are where the skeleton was. I put signs for where each mob was at the time of the encounter. I first experienced it right after the nether update. I was excited for the new biomes so I went to the nether and when I came back it was dark. Usually, there are no mobs when I come back because the area around my house lit up. But when I came back there were hostile mobs everywhere. Worse when I entered the house a creeper spawned. I carefully lured it outside the house and killed it. The next day I went back to the nether I came back. This time it was light outside. But when I went in the house a skeleton was inside. I can't tell if it happened because I went to the nether or if it was because of something else.

I tried to take a picture this time when a skeleton spawned inside my house but I was at low health so there was nothing I could do.

Yeah, the same thing happened to me. I keep the area around my house well lit. Mobs never spaw around my house. But after the nether update hostile mobs keep spawning even at high light levels. A creeper even spawned inside my house.