Our LOST cat!

We lost our cat. She ran away a few nights ago and took her boy kitten with her. If you live in our area, keep an eye out for her please. This is her photo and her kitten when he was only a few weeks. He's now about 3 or 4 months old. The shelter said to start looking in your car engines before you start up if you park outside because stray cats are starting to crawl up into them to stay warm in the night. Its freezing around here! Thanks!