The master engineer is a skilled Dwarf engineer of exceptional knowledge, skill, and ability. Most toil for years to achieve this level of expertise - any many toil in vain. Master engineers epitomise Dwarf technological skill and know-how. Most often the Guildmaster of a particular chapter is chosen from the eldest, wisest, and most skilled of the master engineers. Special Rules: Like Master Artisans, Dwarfs who reach the level of Master Engineer may purchase any skill that enhances a Dex or Construct test a second time, gaining a cumulative bonus.