It all started this evening, we meaning two adults were sitting up stairs watching tv, my youngest cat Charlie 2 years old, always goes downstairs to look out the window, or play with her toys, she bounces them down the stairs and will bring them up and start again! So anyhow, were sitting there and she goes down, and all of a sudden we here a noise and she Shoots up the stairs like the devil himself is after her, and she ran behind the couch, then thru the kitchen and now an hour later she is still in hiding, where I have no Idea, we have no dogs, the other two cats were upstairs sleeping, and no kids in the house. Just two adults. Any idea what it could have been that spooked her so bad? I'm completely perplexed.