Hi there, I noticed that the final encounter seems to be incorrect. Aiden Vrood has 6th level spells (Circle of Death, Eyebite) suggesting he is CL 11, but his build is Necromancer 8/Agent of the Grave 3. The Agent of the Grave PrC only has a caster level progression for levels 2-5. This means that Vrood should only have 10 caster levels and should be ineligible for 6th level spells.
Is this correct, or should he be a level higher?