Caitlyn and her friends have returned to Jude’s Sorcerous Academy, but all is not well in the school. The Great Houses of Shallot are on the verge of going to war, and the conflict is spilling into the school; in the background, powerful and secretive forces prepare to finally reveal their plans to reshape the world. Caught in the middle, torn between her family and her friends - and burdened with a secret she dares not share - Cat must unlock the secret of the Zero Equation...or watch helplessly as her family, friends, and school are destroyed by war.

Isabella Rubén is a traitor - at 12 years old. Disgraced, abandoned by her friends and shunned by her family, Isabella is sent into exile with scant hope of returning to her former home. Her destination, Kirkhaven Hall; a stone mansion miles from civilization, inhabited only by a pair of older exiles. As she tries to settle into Kirkhaven Hall and a life far from the one she enjoyed before her fall from grace, she discovers that the hall has secrets. Intruders on the grounds, ghostly shadows moving at night, and a plot that may destroy everything she once held dear.

Five months after the House War, the city of Shallot is on edge. The Great Houses plot and plan against one another, while the magicians rebuild and the common folk fear another outburst of fighting. And one young nobleman has a plan. Rebecca is a half-caste shopgirl in an apothecary, dreaming of an apprenticeship that will allow her to rise out of poverty and finally make a name for herself in a city that has no use for her kind.

House Rubén and House Aguirre had been rivals for centuries even before the discovery of the Zero Talent and a plot to take control of Shallot plunged them—and the entire city—into war. In a desperate attempt to end the fighting, Akin of House Rubén was betrothed to the only known Zero, Caitlyn of House Aguirre. Since then, the two houses have been locked in an uneasy alliance, painfully aware that they will hang separately if they do not hang together. But, as the marriage starts to loom over the city, Akin Rubén discovers a deadly secret.

Six years ago, in the aftermath of the House War that nearly tore Shallot apart, Akin Rubén and Caitlyn Aguirre were betrothed in a bid to keep their rival families from returning to war. Now, with both of them on the brink of maturity, that marriage is starting to loom. The moment of choice, when they must decide to go through with the wedding or risk their families resuming their rivalry, is fast approaching.

The once-great mansion is decaying, the vast network of clients have broken ties long ago, and the remaining family scrabbles over crumbs as the last remnants of their fortune are spent repaying their debts. The family seems doomed, beyond all hope of salvation. Lucy Lamplighter, returning to her home after her father’s death, intends to save her family by any means necessary. Gambling everything she has left, she stakes it all on a desperate bid to rebuild House Lamplighter before the vultures begin to swoop.

The student witches are growing increasingly reckless, preying on the mundanes below the mountains as their tutors plot and scheme to take advantage of the chaos. And no one seems to know why. Emily is in no condition to intervene. But she cannot refuse. Heading to Laughter, Emily finds herself dragged into a world of schoolgirl games, staffroom politics, and a deadly plot aimed at the heart of the Allied Lands themselves.

A brutal uprising in the Kingdom of Alluvia has shaken the Allied Lands, and Emily finds herself accused of starting it. Desperate, all too aware the kingdom is on the verge of becoming a vortex of chaos, Emily travels to Alluvia in the hopes of calming both sides long enough to secure peace. However, she's unaware that the uprising is merely the first step in a plan to shatter the Allied Lands beyond repair.

Caitlyn Aguirre should have been a magician. Her family certainly expected her to be a magician. But by the time she reached her 12th birthday, Caitlyn hadn't even managed to cast a single spell! In desperation, her parents send her - and her magical sisters - to Jude's Sorcerous Academy, her last best chance to discover her powers. But as she struggles to survive her classes without a single spell to her name, Caitlyn starts to uncover an ancient mystery that may prove the key to her true powers....

Three of the most powerful necromancers in the Blighted Lands have banded together into an unstoppable force, one capable of breaching the Craggy Mountains and laying waste to the lands beyond. If they cannot be stopped, they will tear the Allied Lands apart. Nothing will survive. And so Emily, the Necromancer’s Bane, is called upon once more to stand in defense of her adopted homeland and stop the necromancers in their tracks. Her presence may be the only thing keeping the Allied Lands from shattering as the war turns hot once again. 

Eight years ago, the Sorcerer Void saved Emily's life. To Emily, Void became, in so many ways, the father she'd never had. And yet Void kept a secret from her. To save the Allied Lands from themselves, to keep them from being destroyed by the necromancers or torn apart by their short-sighted rulers, he embarked on a plan to launch a coup and reunite the long-dead empire, a plan that can only end in total war or a permanent living death. He must be stopped. And now, all that stands between him and his goal is his adopted daughter, Emily herself.

Every magician who wants to be great goes through an apprenticeship...a period of training under a master who will hopefully raise them to mastery themselves. For Emily, the time has come to begin her long-awaited apprenticeship with Void. She must master her powers or risk being destroyed by them. But as Void introduces her to levels and layers of magic she never even knew existed, she finds herself fighting desperately to keep up, to defeat challenge after challenge, to prove her worth to study under him, and to survive a training course that has killed lesser magicians.

The necromancers have finally resumed their assault on the Allied Lands, sending a mighty army across the Desert of Death and into the Kingdom of Tarsier. Countless farms, villages, and towns have already been destroyed as the host makes its way northwards, striking deep into the kingdom's most vulnerable lands. Hundreds of thousands have been killed, thousands more will be killed when they are sacrificed for power. If the necromancers win the coming battle, it may be the beginning of the end.

Years ago, Heart’s Eye, a school built on top of a nexus point, was attacked and captured by a necromancer. The nexus point was snuffed out, the handful of survivors forced to flee, and the once great school turned into a forward base for a necromantic invasion. All seemed lost, until Emily killed the necromancer and retook the school. Now, she intends to lay the building blocks for a university, a place where magical knowledge and mundane technology are brought together for the benefit of all. But dark secrets lie within the shadowed school. 

In the aftermath of the struggle, long-held grudges are boiling over and conflicts are breaking out. The monarchs want to settle border disputes, the aristocrats want to impose their will on monarchs and peasants alike, the commoners want freedom and justice, and the magical communities want to rule all or else separate themselves from the mundanes. And most of this chaos is being orchestrated by Emily’s mentor, the sorcerer Void. He believes the only path to salvation for the Allied Lands is to make himself the undisputed ruler of the world.