A terrified mum recorded chilling footage of a dark figure she believes is the ghost of a teenage boy.
Mum-of-four Lori Simmons was chatting to her friend on an app which allows users to record videos to each other in real time when her mate asked her if someone was in the house with her.
Lori - who claims to have been home alone at the time - said her 'heart stopped' after she replayed the chilling footage and witnessed a dark figure dash in and out of the frame behind her while she spoke to Shana Thomas.
She says chills were sent down her spine and her 'heart jumped into her throat'.
Lori believes the figure to be the ghost of a 'prankster' teenage boy - but is also open to the idea of it being an alien.
The 47-year-old from Yakima, Washington, USA, said she had just woken up and was chatting with her best friend on the app Marco Polo - but was left horrified.