El Internado / The Boarding School - Kathleen King - Bog

"Ten years later, journalist Lucâia Fernâandez returns to the boarding school where she studied in Wales. The announcement appears at a time when her life is about to crumble, and she decides to go back to school to meet up with some friends. What she does not imagine is that a weekend of celebration will turn into a true nightmare. It all starts when a former student mysteriously disappears and no one, except Lucâia, seems to care"--