Although the majority of humanity lives on the Edges, there are benefits to going closer to the Deep Center. Not only is Magica easier to come by, there are often relics from previous ages to be uncovered that can be sold for high amounts, and it is still possible to find "treasure beasts". These creatures are designed to be slain, and will always have a treasure or reward inside of them befitting whoever managed to kill them. Be warned however! Treasure beasts are *not* to be confused with Monsters, Demons, or Constructs. Monsters will mostly try and avoid confrontation, but can be incredibly deadly. Demons are of course self explanatory, and constructs are guardians from pre-(H)istory that should only be approached if you have appropriate firepower at your disposal. 

-The Adventurers Guide to the Continent