Seanan McGuire

Seanan McGuire's New York Times-bestselling and Hugo Award-nominated urban fantasy InCryptid series continues with the thirteenth book following the Price family, cryptozoologists who study and protect the creatures living in secret all around us
Mary Dunlavy didn't intend to become a professional babysitter.  Of course, she didn't intend to die, either, or to become a crossroads ghost. As a babysitting ghost, she's been caring...