City of Sorcery (The Hundred Halls Book 5)

As the Hundred Halls heads towards civil war, the fate of the city—and possibly the world—depends on Aurie and Pi finding the truth about Invictus' disappearance. Following a trail of dangerous clues, the sisters delve deeper into the head patron's past, finding their family's history entwined with the university. As they get closer to the final answer, they must decide if saving the world is worth shattering the ideas of who they think they really are.

• Gathering of Shadows (The Hundred Halls Book 4)
• Alchemy of Souls (The Hundred Halls Book 3)
• Web of Lies (The Hundred Halls Book 2)
• Trials of Magic (The Hundred Halls Book 1)
• The Family Pride (The Zero Enigma Book 6)
• The Family Shame (The Zero Enigma Book 4)
• The Reluctant Assassin: A Hundred Halls Novel
• Cursed (Schooled in Magic Book 17)
• The Alchemist's Apprentice (The Zero Enigma Book 5)
• The Sorcerous Spy: A Hundred Halls Novel (The Reluctant Assassin Book 2)