The Prison-Crypt of Mu-Ye

Far into the marsh there is a cliff with a large gate few dare to look upon. Legends say it is the entrance to the Crypt of Baron Mu-Ye, an ancient warrior, tyrant, and immortal vampire. Some legends call the crypt a prison, and some also say that the Baron was buried with all of his stolen treasures, but surely only desperate fools would dare to rob such ancient evil?