Used Book – The Wind Singer, Book 1: The Wind Singer, William Nicholson, Diane Ménard

In the city of Aramanth, everyone lives only for the periodic examinations that guarantee an individual well-being and social advancement if successful - or condemn them to poverty and general contempt if they fail. But one day, Kestrel rebels against this system. Forced to flee, the young girl then sets off in search of the key to the mysterious Wind Singer to restore happiness and harmony to the city.