Gram is a "hidden" weapon that can be found stuck in a tree behind a dead moose, in the clearing with a single cabin where you kill your first troll, in Chapter 2. It is a "Medium Physical" weapon type and has the Special Attribute "Dragon Slayer". It is notable in that you can get an achievement for slaying one of the bosses with it (although that requires that you carry it throughout most of the game). Finding it does not contribute towards the Sherlock Holmes achievement, as it does not involve exploring a bonus area. The main use for Gram is to instantly kill Fafnir, one of the last bosses in the game, which will earn you the "Stuff of Legends" achievement.