传闻这是由传奇铁匠家族打造的单手武器制作书。据说，上面收录了各国主要单手武器的制作方法。本卷为该书的第四卷，记载了蕴含独门绝技的单手剑基础制作方法。
A book of one-handed weapon blueprints around the world, known to have been crafted by a legendary blacksmith house. This volume is the fourth in the series, detailing the expertise and the ultimate method for making a sword.