Once, there were four worlds, nestled like pages in a book, each pulsing with fantastical power and connected by a single city: London. Until the magic grew too fast and forced the worlds to seal the doors between them in a desperate gamble to protect their own. The few magicians who could still open the doors grew more rare as time passed and now, only three Antari are known in recent memory—Kell Maresh of Red London, Delilah Bard of Grey London, and Holland Vosijk, of White London.

Prince Tal has long awaited his coming-of-age tour. After spending most of his life cloistered behind palace walls as he learns to keep his forbidden magic secret, he can finally see his family’s kingdom for the first time. His first taste of adventure comes just two days into the journey, when their crew discovers a mysterious prisoner on a burning derelict vessel. Tasked with watching over the prisoner, Tal is surprised to feel an intense connection with the roguish Athlen.

When the Chosen One dies seconds from victory, the future falls into the hands of his younger sister. Disabled since childhood, Elenor never expected to be thrust into the center of a vast political web, but now her choices threaten to unravel it. As she navigates treacherous strands of deception, Elenor must forge alliances, confront sadistic family members, and uncover mysteries that span centuries. The world teeters on the brink of chaos, magic spirals out of control, and ancient forces move in the shadows hungry for vengeance.

Arwen Valondale never expected to be the brave one, offering her life to save her brother’s. Now she’s been taken prisoner by the most dangerous kingdom on the continent, and made to use her rare magical abilities to heal the soldiers of the vicious Onyx King. Arwen knows better than to face the ancient, wicked woods that surround the castle on her own, which means working with a fellow prisoner might be her only path to freedom. Unfortunately, he’s as infuriating as he is cunning—and seems to take twisted pleasure in playing on Arwen’s deepest fears.

The Guild of Navigators has ruled the Aion Sea for centuries, using their fleet of mystical ships to collect trade for the Aurelian Empire. Now, the Emperor is dead. For Calder Marten, Captain of The Testament, the Emperor’s death is not an end, but an opportunity. He and his crew seek the legendary Heart of Nakothi, an artifact that could raise a second Emperor...and earn Calder a fortune. But they’re not the only ones who want the Heart. The Consultant’s Guild, an ancient order of spies and assassins, will stop at nothing to keep the world in chaos.

Princess Lira is siren royalty and the most lethal of them all. With the hearts of 17 princes in her collection, she is revered across the sea. Until a twist of fate forces her to kill one of her own. To punish her daughter, the Sea Queen transforms Lira into the one thing they loathe most - a human. Robbed of her song, Lira has until the winter solstice to deliver Prince Elian's heart to the Sea Queen and or remain a human forever.

Life in a remote fishing village in the middle of a civil war is neither safe nor inspiring. So, when an opportunity comes along for village girl Lynn to be kidnapped and enslaved by Darren, a ruthless pirate queen, she takes full advantage of it. But Darren is neither as ruthless nor as piratical as she appears at first glance--and Lynn's not exactly what she seems to be, either.

Amina al-Sirafi should be content. After a storied and scandalous career as one of the Indian Ocean’s most notorious pirates, she’s survived backstabbing rogues, vengeful merchant princes, several husbands, and one actual demon to retire peacefully with her family to a life of piety, motherhood, and absolutely nothing that hints of the supernatural.

As princess of the island kingdom Visidia, Amora Montara has spent her entire life training to be High Animancer - the master of souls. The rest of the realm can choose their magic, but for Amora, it’s never been a choice. To secure her place as heir to the throne, she must prove her mastery of the monarchy’s dangerous soul magic. When her demonstration goes awry, Amora is forced to flee. She strikes a deal with Bastian, a mysterious pirate: he’ll help her prove she’s fit to rule, if she’ll help him reclaim his stolen magic.

Lara has only one thought for her husband on their wedding day: I will bring your kingdom to its knees. A princess trained from childhood to be a lethal spy, Lara knows that the Bridge Kingdom represents both legendary evil - and legendary promise. The only route through a storm-ravaged world, the Bridge Kingdom controls all trade and travel between lands, allowing its ruler to enrich himself and deprive his enemies, including Lara’s homeland. So when she is sent as a bride under the guise of fulfilling a treaty of peace, Lara is prepared to do whatever it takes....

The emperor's reign has lasted for decades, his mastery of bone shard magic powering the animal-like constructs that maintain law and order. But now his rule is failing, and revolution is sweeping across the Empire's many islands. Lin is the emperor's daughter and spends her days trapped in a palace of locked doors and dark secrets. When her father refuses to recognise her as heir to the throne, she vows to prove her worth by mastering the forbidden art of bone shard magic.

Burn brightly. Love fiercely. For all else is dust. Every child of Glasnith learns the last words of the god-gifted mortal Aillira, and Lira of clan Stone, a descendant of Aillira with the power to read people’s souls, knows the story better than most. When a golden-haired warrior washes up on the shores of her homeland, Lira helps the wounded man. But as they form a bond forbidden by both their clans, Lira finds herself facing the same tragic fate as her ancestor.

Magic. Sailing. A murderer among heroes. Gravedigger Volke Savan wants nothing more than to be like his hero, the legendary magical swashbuckler, Gregory Ruma. First he needs to become an arcanist, someone capable of wielding magic, which requires bonding with a mythical creature. And he’ll take anything...So when he stumbles across a knightmare, a creature made of shadow and terror, he has no reservations. But the knightmare knows a terrible secret: Ruma is a murderer out to spread corrupted magic throughout their island nation.

In a world of arrogant nobles and their punishing laws, Georgina will be hanged if anyone discovers she is a spy. But when the wicked prince proposes marriage, Georgina must accept. Refusing would expose the secrets she has delivered to a hidden resistance and forfeit her life. With her wedding day looming ever closer, salvation comes from an unlikely source.

Fleeing the ruins of Deimos, Ash and Madoc sail across the ocean toward their only possible allies: the water and plant gods. But when Anathrasa attacks on the way, Ash leaps to the defense - by using a power she didn’t know she had. When Madoc made the fire and earth gods mortal, he inadvertently transferred their magic to Ash. Now, if Ash can get energeias from the other four gods, she will be powerful enough to end Anathrasa once and for all.