A homunculus is a tiny servitor construct created by a crafter to serve as a spy, scout, messenger, or assistant. When a crafter first begins to study the art of creating constructs, she often crafts a homunculus first, since the creation process is simple and inexpensive due to a magical shortcut: the use of the creator's own blood. This forges a link between the homunculus and its master, causing the homunculus to gain a spark of the creator's intellect, as well as the same moral values and some of the creator's basic personality traits. Homunculi left to their own devices never stray far from their masters.