Diese Serie entführt die Leser in eine alternative Gegenwart und folgt den weiblichen Nachkommen Alexanders des Großen. Diese außergewöhnlichen Frauen haben die Aufgabe, Einhörner zu jagen und zu töten, mythische Wesen mit mächtiger Magie. Die Erzählung erstreckt sich über verschiedene historische Schauplätze, vom Rom der Renaissance bis ins Frankreich des 18. Jahrhunderts und darüber hinaus. Sie bietet eine fesselnde Mischung aus Action, Geschichte und dem Übernatürlichen.
After sixteen-year-old Astrid Llewelyn survives a vicious unicorn attack, she learns that she is a descendant of the most famous unicorn hunter of all time and she must travel to Rome, Italy, to train in the ancient arts in order to carry on her family legacy and save the world from the threat posed by the reemergence of lethal unicorns
Astrid Llewelyn is now a fully trained unicorn hunter, but she can't solve all her problems with just a bow and arrow. Her boyfriend, Giovanni, has decided to leave Rome, the Cloisters is in dire financial straits, her best friend's powers are mysteriously disintegrating, and Astrid can't help but feel that school, home, and her hopes of becoming a scientist are impossible dreams. So when she's given the opportunity to leave the Cloisters and put her skills to use as part of a scientific quest to discover the Remedy, Astrid leaps at the chance. Finally, she can have exactly what she wants—or can she? At Gordian headquarters in the French countryside, Astrid begins to question everything she thought she believed: her love for Giovanni, her loyalty to the Cloisters, and— most of all—her duty as a hunter. Should Astrid be saving the world from killer unicorns, or saving the unicorns from the world?