ruleslawyer
Registered User
It's a long story. Spoilers follow:
In short, Manshoon is *not* a vampire. However, there is a stasis clone of Manshoon's who was infected with vampirism during stasis and woke prematurely to find himself in thrall to the Night King of Westgate, the head of that city's thieves' guild, the Night Masks. Manshoon arranged for his master to be destroyed, thus making himself the master vampire, and assumed leadership of the Night Masks. Further details can be found in the 2e Cloak and Dagger supplement and the 3e Lords of Darkness book.