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"But what happened to Gavril and Kiukiu after Children of the Serpent Gate? When is the sequel coming out?" Readers have been asking me this question ever since Book 3 of The Tears of Artamon was published - and at last I've had the chance to provide an answer in Book 4: The Arkhel Conundrum. Azhkendir, land of snow and shadows, harbours many secrets - and a powerful ancient winter deity is awakened when a foreign mining company begins to strip out the rare mineral resources beneath the mountains. Old clan hatreds are stirred up. The High Steward of Azhkendir, Lord Gavril, and his wife, Spirit Singer Kiukiu, hope to seek help from the Emperor Eugene. But their onetime enemy turned ally is distracted by his competition to build a flying machine. Is someone from their past trying to destabilize the fragile peace of the empire? Or are there supernatural forces involved? The Magus, Kaspar Linnaius, may have the answers...but he has disappeared and no one knows where he is or how to contact him.