Emilia is determined to clear Vittoria's name when she is implicated in the murder of a high-ranking member of a rival demon court--even when her investigation forces Emilia to face the demons of her own past.

Seventeen-year-old Karou, a lovely, enigmatic art student in a Prague boarding school, carries a sketchbook of hideous, frightening monsters--the chimaerae who form the only family she has ever known.

Cordelia Carstairs, a Shadowhunter trained to battle demons, travels with her brother to London where they reconnect with childhood friends but soon must face devastating demon attacks in the quarantined city.

Emma is torn between her passion for Julian and her need to protect him from the consequences of a forbidden romantic partnership, a situation challenged by her relationship with Mark and his efforts to regain his Shadowhunter capabilities.

Billy attempts to overcome the Dragon Slayer so he can help souls who have become trapped in a mysterious gem.

"Outcast Vera and popular jock Max are up against dark forces that stretch much further than their small, coastal town-and into the very heart of evil"--

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.

On her seventeenth birthday, Hannah Williams begins exhibiting impossible, temporary mutations--gills one day and horns the next--that are the consequences of a desperate bargain her mother made with a sheyd decades ago, and to break the family curse, Hannah and her brother track down their mother's estranged family and discover a legacy that traces back to the Golem of Prague.

"As tensions rise, they must stay close together and patrol the DC streets at night, seeking signs of the Harbinger, an entity that is killing Wardens and demons with no seeming rhyme or reason. Forbidden to be with each other, Zayne and Trinity fight their feelings and turn to unusual sources for help -- the demon Roth and his cohorts. But as deaths pile up and they uncover a sinister plot involving the local high school and endangering someone dear...

Billy and Bonnie have survived their earlier adventures, but now an even more perilous task is before them: navigate the seven planes of existence of a multidimensional domain of evil, each one leading them closer to a powerful enemy, and free the prisoners held in the seventh circle using their dragon skills--and Billy will face the most difficult decision of his life: to continue the quest or turn aside to save Bonnie.