Silver Dragon Codex (The Dragon Codices book 6) by R.D. Henham was just released in the U.S.
Description: From the publisher: Each Dragon Codex novel takes one type of dragon and weaves a spellbinding story around it, alternating between good (metallic) and evil (chromatic) dragons. Silver Dragon Codex is the story of Jace, a highwire circus acrobat whose quest to clear a silver dragon's name leads him into danger - and a thrilling ride on dragonback.
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