Losing You by Nicci French

I don't know if I've read anything else by this author (who is actually a husband-and-wife writing duo) but I will check out their other books. Another mystery, another missing child. This time it is a 15-yr.old girl named Charlie. She is supposed to come home from a sleep-over and get packed. Charlie, her brother Jackson, mom Nina and Nina's boyfriend are planning to leave that afternoon for Florida. It's Nina's 40th birthday and she has lots to do. Her old car is giving her problems but she manages to make it home. No Charlie. Nina is not happy that her irresponsible daughter has not packed. Then people start coming to the door. Surprise! It's a birthday party - planned by Charlie. But still no Charlie. You see where this is going, don't you? It read quickly and was interesting. I would recommend it.