My husband woke up one morning a few months ago and he had this blue green black stuff all over one of his shoulder. He said it looked like crayon or a bruise. Then this morning my son had it all over his neck and shoulders it happened when they were asleep. Could it be ghosts? We just moved in this house 3 months ago. There was only 1 couple that lived here before us they had this house built for them. Could they have died somewhere else and then came back here?

Hi, skbeany!

Are the heads of the beds in front of windows? Also, have you been running the furnace?

Thanks!

No the beds are against the walls and I haven't been running the furnace.