It unlocks the player's ability to understand the language of the dwarves. This allows the player to communicate with the [[ドワーフ|Dwarf]] in [[鉱山|The Mines]], and to read the rightmost gravestone in the [[墓場|Graveyard]].
*In the "rewards" screen shown after donating all 4 scrolls to the [[博物館|Museum]], the item type of the Dwarvish Translation Guide reads "Crafting", even though it cannot be crafted.