For certain, in the art of duelling he did not know the proper ways, and there were many times of many rapid ends, as she found easily the areas undefended against which to place her own wooden blades. But, if the attributes physical demonstrated thus far had not sufficiently impressed her, then the ability of the Engineer Royal to learn from his mistakes was additionally surprising. Each opening she exploited and exposed was soon closed once explained, and though the batpony soon found new ones or reopened the old ones, the Engineer Royal did at least manage to make her work to find them.