How Is Jacks The Prince Of Hearts Connected To The Caraval Universe?

I was the "Sickly Prince"—a weak scholar hidden in oversized suits. But in the underworld, secrets are the only currency that matters, and mine is the most lethal of all. Aradaa Vaelis has spent twenty-one years hiding his elite combat training from his tyrannical father, the Don. But when his father gambles away his sister’s life, Aradaa is forced to shatter his facade. To save his sister, Aradaa makes a deal with the devil: he will become a human sacrifice for the Dreadfang Clan, a savage "Beast" Mafia known for their monstrous strength. His buyer? Kaelor Dreadfang. Known as the "Beast King," Kaelor is a man losing his mind to a feral rage and a slow poison. He doesn't want a soldier; he wants a "pretty toy" to break. But the moment they touch, a primal Mate Bond ignites—a shockwave of desire that neither can fight. Now, Aradaa is trapped in the King's Master Suite, serving as Kaelor’s "Exclusive." But as the Syndicate moves to destroy them both, Aradaa’s true lineage begins to surface. He isn't just a slave or a scholar—he is the Pure-Blood, the only one capable of curing the bio-weapon plague and ruling the underworld. The "Pretty Prince" is dead. The King’s partner has arrived. And together, they will burn the Syndicate to the ground.

Saving an injured Fae in the forest had not been Islinda's plan, and worse, he turns out to be royalty, Prince Valerie of the summer court, heir and crown prince to the throne of Astaria.

What happens when the king of vampires on Planet Earth and the heir to the throne of Planet Kurr fall in love? Jessica was raised on earth and had no idea she was the princess of the planet Kurr and heir to its throne until she is captured by the evil flesh eating Dragos and then rescued by Jack, the king of the vampires on Earth. Unbeknownst to Jessica, Jack has been guarding her for most of her life from the shadows as a promise to her deceased father. Over those years he grew to love and desire her. Now that he’s so close to her, he struggles to subdue that love and desire, while Jessica pushes to bring it forth.

One night is all it takes to burn her world to ash. Dragged from the ruins of her family’s estate, Serenya Vale is thrust into the heart of a palace that thrives on whispers, beauty, and blood. At its center sits Prince Kael Dravaryn — dangerous, breathtaking, and the very man everyone swears is her captor… and her only protector. Surrounded by wolves in silk, Serenya is given a choice: obey the Prince and survive the court’s games, or defy him and be devoured by those with sharper teeth. But survival becomes far more complicated when a mysterious knight begins crossing her path — his gaze lingering too long, his presence unsettling the careful balance Kael keeps around her. In a court where a smile can be a blade and a kiss can start a war, every step Serenya takes binds her tighter to two men… and to a fate she never asked for.

Bailey is an erstwhile heiress to Earth and Fae Magick, protector of the portal into Faerie. And she hates it. Jayce needs to find a proper Queen to rule the Spring Court with him. Beckett has become jaded with life as the Prince of the Summer Court. Tobin, Prince of the Autumn Court, is a hopeless romantic still searching for the love of his very long Fae life. Murder, mystery and romance await all four as they traverse Faerie and Earth, searching for the murderer of Bailey's grandfather. They might be able to survive any attack from outsiders, but will they be able to survive each other as romance and intrigue colors their lives?

The story takes place in the medieval time of kings and queens. In the place where there are four kingdoms with the names of the four seasons. Two large arranged marriages begin a terrible event, which will change everyone’s life, turning them into other people. Belle, the queen discovers that her own son was killed by her husband under the command of his mistress. Cassian, has a bad relationship with his father, after the death of his mother, he is hated by his people, is a man without mercy to his enemies. But after discovering that his father plans his death in a war, he is forced to team up with Queen Belle to prevent the war from happening, as her husband is also plotting against her for his death. The two embark on a journey in search of an unknown kingdom never seen, but always spoken of in mystical stories of the kingdom. In the midst of all this obstacle that arises, Cassian is injured, Belle kidnapped by outlaw men, but manages to escape to the kingdom ruled by women. Meanwhile, in his kingdoms, King Cassian’s best friend joins his father at the beginning of the war.