Someone's trying to make the students sick at upscale boarding school Danforth Academy. Abby, Paige, Claire, and Taylor join forces to solve the mystery. Could it be Mia or Riley--the girls who have everything that money can buy? Or Emily, the Principal's know-it-all daughter? Maybe it's wacky Sean Meneskie? Or the school's strange Professor Plume. Whoever it is, the four best friends will find out.
