Missing Black/Orange Tortie Cat

A friend came home today to find his indoor only cat missing. After 3 different people searched the house from top to bottom, checking ceilings, walls, closets, pretty much everywhere: she is still gone. It's extremely bizarre and all we can think is maybe she slipped out, which is out of character for her.She is an indoor only cat and has never had to fend for herself. She's 10 lbs. A black & Orange Tortie. She is friendly, but probably very scared. She answers to Cookie.
She lives near the intersection of Valley Way & Dewey.

Please, if you see this cat try to detain her and call me on my cell at 301 512-6821 and I will rush over.