Parsed at 985K hps (killed in 75 seconds).
Highest hit on 95 SK, 8K approx. AC was a bit over 10K.
Cast Silent Dread every 10 seconds exactly.
Note: For all map points of nameds in Miragul's Nightmare (for "miragulmare.txt" map files), see this quest entry.
Fearstalker spawns at the second house near the zone-in (PHs are the "a mournful shade" mobs in this area).
It hits for a max ~13,000 and sees through all forms of invisibility.