Unless you added "poison," there's none there. It's just stinky anaerobic (w/o air) decomposition. Sandy's suggestion of spreading it out (which I'd do in its' final destination - moving compost around more than necessary is avoidably hard work) sounds like a good idea to me. If you find chunks of stuff that are too big, you can pull them out & use them as the basis for starting a new pile. As soon as your stuff dries out, the odor should be gone.
