Curious tides / Pascale Lacelle.

Emory might be a student at the prestigious Aldryn College for Lunar Magics, but her healing abilities have always been mediocre at best--until a treacherous night in the Dovermere sea caves leaves a group of her classmates dead and her as the only survivor. Now Emory is plagued by strange, impossible powers that no healer should possess. Powers that would ruin her life if the wrong person were to discover them. To gain control of these new abilities, Emory enlists the help of the school's most reclusive student, Baz--a boy already well-versed in the deadly nature of darker magic, whose sister happened to be one of the drowned students and Emory's best friend. Determined to find the truth behind the drownings and the cult-like secret society she's convinced her classmates were involved in, Emory is faced with even more questions when the supposedly drowned students start washing ashore-- alive --only for them each immediately to die horrible, magical deaths. And Emory is not the only one seeking answers. When her new magic captures the society's attention, she finds herself drawn into their world of privilege and power, all while wondering if the truth she's searching for might lead her right back to Dovermere...to face the fate she was never meant to escape.