High Quality Content by WIKIPEDIA articles! Hex Hall is a best-selling trilogy of young-adult paranormal romance novels by American author Rachel Hawkins. The trilogy is centered around Sophie Mercer, a sixteen-year-old witch who is sent to Hecate Hall (nicknamed "Hex Hall"), a boarding school for magical beings, after a string of disastrous spells gone wrong. While there, she gets caught up in the on-going war between the Prodigium and the human organizations who seek to eradicate them from the world.