TickTock

Tick tock, went the clock. It was 5:00 in the morning. It was raining, and Walt was up early, watching Saturday morning cartoons. He heard a creak from upstairs. What was that? thought Walt. He tiptoed upstairs. He found that everything was... perfectly normal? Strange... Or maybe not. Suddenly, he heard glass shatter from downstairs, accompanied by an ear-piercing shriek. Walt ran downstairs. His parents, who were in their room only minutes ago, had disappeared... entirely. Even his cat who was in its cage, had disappeared. He looked around, and found no trace of broken glass, or even a broken window. Nothing..... except a bloody, humanoid, tall monstrosity limping towards him.