Book request: The book starts with a mysterious ritual on an island in New Englandc. A teenage girl might drown, or is supposed to die but doesn't. A teenage girl returns to her family's town in New England. She has a beautiful red headed cousin who is wealthier than her. The cousin's name might be Cordelia, and the MC's name might be Madeline/Madeleine. It's at least a duology -- runes feature heavily in the second book, and are on the cover, I think. Magic/magical abilities have been a part of their family history for a long time.There's an abandoned stone building in the forest, I think an asylum but maybe a hospital. I think it's named something like Blackthorne or Blackhill. There's a bad boy love interest for someone. (view spoiler)[ the cousin might be pregnant or have a baby at the end of the first book  (hide spoiler)]

Matching book description: There are some girls who have everything... She has the right clothes, the right friends, and the right last name, but fifteen-year-old Maddie Crane sometimes feels like an outsider in her clique in the wealthy, seaside town of Hawthorne, Massachusetts. And when her gorgeous, eccentric cousin Cordelia LeClaire moves to town, Maddie is drawn toward her ethereal, magical spi There are some girls who have everything... She has the right clothes, the right friends, and the right last name, but fifteen-year-old Maddie Crane sometimes feels like an outsider in her clique in the wealthy, seaside town of Hawthorne, Massachusetts. And when her gorgeous, eccentric cousin Cordelia LeClaire moves to town, Maddie is drawn toward her ethereal, magical spirit and teeters even more toward the edge of her friends' tightly-knit circle...  Then there are the jealous ones... Kate Endicott and the --a secret clique of the most popular, powerful girls in school--are less than thrilled by Cordelia's arrival. When Kate's on-again, off-again boyfriend Trevor takes an interest in Cordelia, the  become determined to make her pay...  Now Maddie must choose between the allure and power of the  and her loyalty to her beloved cousin. But she'll have to give up on ever fitting in and accept the disturbing truth about the town, her friends, her mysterious cousin, and even herself as she faces the terrifying wrath of the ...  ...more