69: A Great and Terrible Beauty (Gemma Doyle, Book 1), by Libba Bray (2003 paperback)

Sent to an English boarding school after witnessing the death of her mother under mysterious cicumstances in colonial India, Gemma Doyle gets caught up in the occult. The first in a series, the plot is somewhat interesting, but the overall premise wasn't enough to make me pick up the next volume. Those who enjoy magic and the paranormal may fare better. And, check out Bray's more contemporary novels, Going Bovine and Beauty Queens for some quality satire written for a teen audience.