Medieval is the third time you enter, in MySims Invasion. This area is MorcuCorp's second most major base. The area has many small buldings, the largest being the MorcuCorp Mobie HQ. There is a spooky girl named Raven, a boy who likes food named Derek, and a MorcuCorp spy named Violet.
MorcuCorp seams pretty intrested in Medieval times, as they place two employees when There Spy quit, but why they are intrested is never found out.