Imperial Spy by Mark Robson
When Femke is entrusted with a vital foreign mission for the Emperor, the resourceful young spy assumes it will be a straightforward task. But nothing is simple when your enemies are one step ahead of you. Framed for two murders while visiting the neighbouring King's court, Femke finds herself isolated in a hostile country. As the authorities hunt her down for the murders, her arch-enemy, Shalidar, is closing in for his revenge . . . First in a new series.