Anya and the nightingale

"After embarking on a journey to bring her papa home from war, Anya discovers a powerful forest creature terrorizing travelers. But she soon learns that he's not the monster the kingdom should fear. There's an even greater evil that lurks under the city. Can Anya stop the monster, save her papa, and find her way home? Or will the secrets of Kiev leave Anya and her friends trapped beneath the city forever?"--Provided by publisher.