It's not easy being the daughter of a witch. Sal's mother Rosemary can make a violet grow out of your nose (it tickles) and can stir up a nice bat repellent, but it's up to Sal to make meals and take care of the magical creatures that live around their home. However, there is no one in the world Sal loves more than her mother, and no place she'd rather be than in the treehouse that her mother magically grew out of an oak tree. Sal has no magic of her own, but she does have a nose for mystery. When a dangerous enemy comes to the treehouse, will Sal uncover secrets quickly enough to save the people she loves?