Mother-of-one Heather Brough, 25, from Michigan, discovered three deep 'purple scratches' on her one-year-old baby's cheek after waking her from a nap. The unexplained injuries on her daughter Lily, prompted Ms Brough and her fiance Josh Higgins, 30, who live at his mother's guesthouse, to check their baby camera. But when reviewing the footage, they claim to have seen a male figure briskly walking past Lily's cot before disappearing into thin-air.