The Theban mysteries - Amanda Cross

For a century, wealthy New York girls have been trained for the rigors of upper class life at the Theban, an exclusive private school on the Upper East Side of Manhattan. Kate Fansler is lured back to her alma mater to teach a seminar on Antigone. But a hostile note addressed to Kate, the uniform mistrustfulness of her six, bright students, and the Dobermans that patrol the building at night suggest trouble on the spot. As Kate leads her class through the inexorable tragic unfolding of Antigone, a parallel nightmare envelops the school and everyone connected with it. . . .