There are 11 a slithering shade in the underground crypt tunnels in Hills of Shade - 8 static, 3 roaming. The 3 roamers are placeholders for Sorrow. Respawn time 16:20. Indifferent con.
Self-buff with Ethereal Invisibility: Permanent. To view or track you need WIZ MAG 77 Aspect of Zomm, RNG 76 Skylight Sagacity, DRU 77 Sharp Eyes or 87 Eyes of the Winter Hawk. Or use an AE to get aggro. They are social with each other.