Mary Gardener has been attending Clarion Ladies' Academy for at least a year now. Of course, wanting to grow up and work in the field of cellular biology has its disadvantages -- such as, not really fitting in at a 'ladies' academy.' Though, she's had roommate, Rachel Elizabeth Dare to keep her company. Everything was going just as wonderfully, until, of course, Rachel disappeared. Now, with Rachel's father starting a police investigation and a bunch of stuff which Mary finds to be like, Ancient Greek, or something, can she find where her friend has gone? Turns out, her camp friends don't know either. ((SET BETWEEN THE LAST OLYMPIAN AND THE LOST HERO))