Aliens Don't Wear Braces (The Bailey School Kids #7)

The hugely popular early chapter book series re-emerges -- now in e-book! When the art teacher disappears after a strange display of flashing lights, it looks like Bailey Elementary is in a bind. But out of nowhere a mysterious and pale woman with silver-white hair and an unusual white outfit shows up to take her place. Soon after her arrival the objects of Bailey City start to lose their color, but the new teacher seems to be getting more colorful every day. Can the Bailey School kids stop Bailey City from being washed out before it's too late?