"The Royal Promise" is the second novel in the trilogy about the adventures of seventh-grader Lina Lapina (the trilogy also includes the novels "The Key to the Kingdom" and "Evil Has No Power"). This trilogy was published in the new series of Folio publishing house "Worlds of Marina and Serhiy Dyachenko", which will publish almost all works (over 20 volumes) of writers, translated into Ukrainian and beautifully illustrated. Also in this series in 2017, the novel "Execution" was published. Lina suddenly finds herself in a magical Kingdom, whose fate directly depends on her. Isn't the girl frightened, even though she is a magician of the road, of the shockingly dangerous adventures that await her in the world, where there is no gate? .. ... But Lina does not back down from her promise ...