The Audition is a free prequel to Seraphina available online. It takes place a few weeks prior to Seraphina, covering Seraphina Dombegh's audition to become Viridius' assistant and thus Glisselda's music tutor.

Librarian Note: Alternate cover edition for ISBN 9780375866562. In her New York Times bestselling and Morris Award-winning debut, Rachel Hartman introduces mathematical dragons in an alternative-medieval world to fantasy and science-fiction readers of all ages. Four decades of peace have done little to ease the mistrust between humans and dragons in the kingdom of Goredd. Folding themselves into human shape, dragons attend court as ambassadors, and lend their rational, mathematical minds to universities as scholars and teachers. As the treaty's anniversary draws near, however, tensions are high. Seraphina Dombegh has reason to fear both sides. An unusually gifted musician, she joins the court just as a member of the royal family is murdered—in suspiciously draconian fashion. Seraphina is drawn into the investigation, partnering with the captain of the Queen's Guard, the dangerously perceptive Prince Lucian Kiggs. While they begin to uncover hints of a sinister plot to destroy the peace, Seraphina struggles to protect her own secret, the secret behind her musical gift, one so terrible that its discovery could mean her very life.

Seraphina took the literary world by storm with 8 starred reviews and numerous “Best of” lists. At last, her eagerly awaited sequel has arrived—and with it comes an epic battle between humans and dragons. The kingdom of Goredd: a world where humans and dragons share life with an uneasy balance, and those few who are both human and dragon must hide the truth. Seraphina is one of these, part girl, part dragon, who is reluctantly drawn into the politics of her world. When war breaks out between the dragons and humans, she must travel the lands to find those like herself—for she has an inexplicable connection to all of them, and together they will be able to fight the dragons in powerful, magical ways. As Seraphina gathers this motley crew, she is pursued by humans who want to stop her. But the most terrifying is another half dragon, who can creep into people’s minds and take them over. Until now, Seraphina has kept her mind safe from intruders, but that also means she’s held back her own gift. It is time to make a choice: Cling to the safety of her old life, or embrace a powerful new destiny?