Though originally released separately, the five editions combined here form one stonkingly well-written, structured and plotted little children's fantasy novel. Jared, Simon and Mallory stumble across a whole hidden world of faeries when they find a Field Guide to fantastical things, and soon they are beset by boggarts and goblins and trolls and ogres and all manner of frightful (and delightful) things, making their life interesting. Told from the point of view mainly of Jared, with his hot temper and anger issues getting him into trouble, it's a marvelous, pacy adventure full of magical and monstrous creatures. This edition, as well as being the complete story with lots of illustrations, includes sketches and lost chapters and fun tributes from other artists. Really quite brilliant.