Seems most folks the Knights come across end up dead, but there is are several notable exceptions....

Lady Ferranifir- If she's a thorn in the side of the Knights, the thorn is poison and very deady. This vampiress is involved with the Academy that has sprung up around the Tomb, and several times has intercepted the party and proven quite a worthy foe.

Jada- They first encountered this Marilith in the Ethereal when trying to leave teh tomb, since then she rescued them from certain death in the Blood Wars. r. midnight has sworn her death, she laughed at him. She finds him very cute.