Golden Yarn, Paperback by Funke, Cornelia Caroline; Latsch, Oliver (TRN), ISBN 1782691413, ISBN-13 9781782691419, Brand New, Free shipping in the US

"After a perilous encounter with an Alder Elf, Jacob must journey into the enchanted Mirrorworld once again. Together with Fox, his beautiful shapeshifting friend, Jacob must follow his brother on the trail of the Dark Fairy, who has fled deep into the East: to a land of folklore, Cossacks, spies, time-eating witches and flying carpets. But what exactly is the Dark One running from? The third book in the series, The Golden Yarn is a thrilling tale of courage and fear, jealousy and forbidden desire; in which love has the power both to save a life - and to destroy it" -- Back cover.