Sophie E Tallis 
White Mountain [EPUB ebook] 

Amongst our modern world lies another, an archaic and hidden world of tradition, sorcery and magic. As dark demons awaken from our past, the last remaining wizards are being hunted and murdered by a changeling of terrifying strength. Attacked and drained of most of his powers, a dying sorcerer must race against time to save himself, and the fate of all, from an enemy intent on cleansing the planet of humanity… Darkness spreads as friendships, betrayals and horrifying truths await…