Remi finds the Hospice Ward more dangerous than she expected when an enigmatic figure known only as the Stranger appears to her in the Veil. The Stranger is known for being a harbinger of terrible events like wars or plagues, which makes his arrival even more troubling. As Remi explores her unusual connection to the land between the living and the dead, familiar faces from her thieving past appear at the hospital and demand that she hands over the key- pendant that earned her a year in Utica juvenile prison. These threats are compounded by the new instructor who has it out for Remi and her friends. When things take a turn for the worse, Remi will have to make a choice between her new life in the hospital and a past that refuses to go away.
Second generation con woman and all-around thief Remi Wilde joined the Hundred Halls—the world's only magical university—in hopes of learning the right spells to pull off a dangerous heist. But rather than one of the less scrupulous Halls, she ends up in Aura Healers, known for its public service and healing arts. Remi isn't dissuaded, and prepares to turn this setback into an advantage as she steals from the school's ample alchemy supplies to fund her artifact hunting mission. The only problem is one of her fellow students, a try-hard werewolf with a god complex, is doing everything he can to get in her way. As the already chaotic hospital gets overrun with patients suffering from a strange madness, the handsome werewolf asks for Remi's help—and her thieving skills—to find out who's really behind the chaos. Their journey leads them into the darker corners of the university, and reveals a plot against the city that will force her to choose her true destiny.
A killer is on the loose in the City of Sorcery, and Damon Wolfhard, second year resident at Golden Willow hospital, fears it might be him. Damon keeps having dreams about murders that happen in the city and waking up covered in someone else's blood. Then his father falls deathly ill while visiting the hospital creating new worries for him. As his father's health grows worse, and the killings in the city become more frequent, Damon learns the real truth about his family's tragedy. Damon enlists his friends' help in a race against time to stop the Full Moon Killer, and despite all his efforts otherwise will end with one of his family members dead.
A deadly ghost is attacking patients and threatening to bring the overworked hospital to its knees. The protective enchantments in the old Curse Ward are breaking down, leading to unusual events and supernatural sightings across the hospital. Lilith de Meath's problems only get worse as her eldest sister—and a royal pain in the ass—arrives to supervise her attempts to fix their patron Medb. Between the ghost and her overbearing sister, Lily finds her life in the City of Sorcery at a dangerous crossroads. If she can't figure out why the wards are breaking down, or a cure for her family's sickness, then being forced to return to Ireland won't be the worst thing that happens.
A demon dragon known as the Caoránarch is on the loose in the City of Sorcery, killing indiscriminately and then disappearing without a trace. Remi and her friends are certain the appearance of the Caoránarch has something to do with the corruption of the summer Fae, and their acquisition of the Twilight Horn, but as they investigate the origins of the demon dragon, their head instructor throws new obstacles into their path—including banishing them to dangerous departments not meant for students. As they struggle to survive their new roles, the killings continue and a strange plague takes hold in the city. Overrun with problems, and struggling with their new departments, Remi and her friends make one last desperate play to save the city—or doom the world if they fail.