Nice find.
We did have some discussion of figs a while back, and I remember posting what I'd suspect stats for a Caller in Darkness would be - keep in mind that this guy is the reason for Van Richten to have his make manifest spell:
Caller in Darkness
CE
?? pts
Large Undead
Level: 9
Speed: F8
AC: 14
HP: 70
Melee Attack: +?? (5) (the listed attack bonus is +7, but it's an incorporeal touch attack, which has usually been bumped by as much as +10 on previous figures; likewise, the melee attack deals 2d6 damage, which could 'round' either to 5 or 10 damage)
Special Abilities
Flight
Incorporeal
Steal Essence (When this creature destroys a living enemy with its melee attack, it gains +10 HP)
SPELLS
Psionics 16pp-concussion blast 1pp (sight; 10 damage), ego whip 3pp (sight; Stun, DC 16), death urge 7pp (sight; affected creature immediately strikes itself for double damage with its highest-damage attack, DC 16 negates)
There are a lot of ways the designers could go, especially with the psi-like abilities (the number of power points in its psionic pool and the cost of its concussion blast are the two things most likely to be wrong in this prediction), but I think this would be a representative prototype.
--
Pauper