The Noble of Sperath (The Heirs of Eveinia) (Volume 1)

When the emperor of Eveinia is murdered alongside his heir, the kingdom's twelve nations are thrown into chaos. A fortnight later, a young woman wakes up with no memories, having been unwittingly selected for an impossible mission—to track down the chosen successor from each nation and appoint one as the emperor. If she fails, she may never be able to return to her old life. But a dark order is emerging. Hunted by assassins and escorted by a stableboy, Lia sets out on a journey to uncover the truth about who she is and why she was chosen. Her first target is Jade, the beautiful but mischievous princess of Sperath. Disguised as her maidservant, Lia must navigate the treacherous waters of the court, her daunting task, and a growing closeness with Jade. When suspicious poisonings begin to plague the castle, it’s up to Lia to find the culprit, or else risk failing her mission—and losing Jade entirely.