Vellum by Hal DuncanBrilliant and startling debut novel of 3-D time. Set in the past, present and future (sometimes all at once), Duncan has created a mythology of mythologies, conflating stories of the gods from many cultures (but especially the old ones), weaving the stories together until the connections between them are illuminated like Heavenly fire. Smart, maddening, and intricate. One of the most original books I've read in recent memory. (Full review here.)