: But keep in mind that this is BEFORE the light knows
: about SOulblighter being alive. They thought that the
: Baron was raising an army himself and probably SUSPECT
: SB after The Keep, but only learn of SB at, I beleive,
: the end of Gonen's Bridge.
GURPS mentions Soulblighter's educating human mages in necromancy, and it specifically states that he taught them to make Ghasts. It doesn't say anything about Thrall. So I guess Kildaer or those working for him only made Ghasts (and by extension Wights), and the Thrall were indeed sent by Soulblighter.
--SiliconDream