The is one of the most celebrated supplements in Dungeons & Dragons history, specifically for its innovative approach to sandbox storytelling and urban intrigue. Published in August 2011 for D&D 4th Edition, this 224-page book focuses on the "Jewel of the North" as it struggles to rise from the literal ashes of a volcanic apocalypse.
For DMs, the Neverwinter campaign setting PDF offers: neverwinter campaign setting pdf