As mysterious murders threaten the new peace between Shadowhunters and Downworlders, only Simon, the Daylighter vampire, can help bring both groups together.

In 20th century Princeton, New Jersey, a powerful curse, which besets the wealthiest of families, causes the disappearance of a young bride, and when her brother sets out to find her, he crosses paths with the town's most formidable people, including Grover Cleveland and Upton Sinclair.

Suddenly able to see demons and the Shadowhunters who are dedicated to returning them to their own dimension, fifteen-year-old Clary Fray is drawn into this bizarre world when her mother disappears and Clary herself is almost killed by a monster.

When seventeen-year-old orphaned shapechanger Tessa Gray is kidnapped by the villainous Mortmain in his final bid for power, the London Institute rallies to save her, but is beset by danger and betrayal at every turn.

While the Clave teeters on the brink of civil war, Julian and Emma take desperate measures to put their forbidden love aside and focus on saving the world of Shadowhunters before the parabatai curse destroys everyone.

Emilia and her twin sister Vittoria are streghe - witches who live secretly among humans, avoiding notice and persecution. One night, Vittoria misses dinner service at the family's renowned Sicilian restaurant. Emilia soon finds the body of her beloved twin ... desecrated beyond belief. Devastated, Emilia sets out to find her sister's killer and to seek vengeance at any cost - even if it means using dark magic that's been long forbidden.

As the Council attempts to strip Charlotte of her power, sixteen-year-old orphaned shapechanger Tessa Gray works with the London Shadowhunters to find the Magister and destroy his clockwork army, learning the secret of her own identity while investigating his past.

Dark Hunter Mr. Blood leaves Edgar and Mary at an empty house where they encounter an evil spider woman who may be tied to their past.

"Samuel Pipps is the greatest detective of his day... but now he's a prisoner, accused of an unknown crime by one of the world's most powerful men. Along with his faithful sidekick, Arent Hayes, they're sailing back to Amsterdam from the East Indies, where he'll stand trial. But no sooner are they out to sea than devilry begins to blight the voyage. Still shackled in his cell, Pipps sends Hayes to solve a mystery that connects every passenger on board....