A quiet swim turned into a pulse-pounding mystery when a massive shadow appeared beneath a woman in open water — and someone watching from shore captured the entire moment on video. The clip, later shared on Reddit’s popular r/WhatIsIt forum, shows a dark, elongated figure gliding directly under the swimmer before disappearing into the depths. “It looks huge,” the original … [Read more...] about Onlooker captures terrifying moment mysterious creature appears under swimmer: ‘Looks huge’