Timothy Gwyn’s fascinating YA novel, Avians, is now available in audiobook through Audible, Amazon and iTunes. This is a remarkable story, with strong female characters, and precise aviation detail. If you haven’t either read or listened to Avians, you should, because this is simply one of the best YA novels out there. The world Timothy Gwyn has created is original and fascinating, one where civilization is restricted to flight for trade and transport, with an apartheid society segregated through…