All of the other races are kept here, in a large cage area. It is full of guards, with very thick and powerful cages to keep all of the unknown, and the less famous of races kept here. Each breed is fed just enough food, and the kind of food to keep them alive, since each nutritionist has to read up on the race to know the kind of food each creature needs.
Which ever beast tries to escape, they are beaten, harmed, and kept in this place. They do not wish for them to be allowed to leave, so some magic is used on specific creatures with abilities to leave through some strange way, this way it is negated.
Most creatures have learned that a master is the only escape from this place, while others do not like the idea of becoming a pet to any other creature, and are very rebellious.