NPCs composing that spawngroup :

Niltoth_the_Unholy (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

hole_21, range=74 (1057,506,-605)

a_broken_construct (100%)

hole_24, range=44 (1025,506,-605)

a_broken_construct (100%)

hole_29, range=32 (1001,548,-641)

a_broken_construct (100%)

hole_82, range=199 (790,566,-638)

hole_119, range=100 (932,607,-574)

hole_120, range=151 (835,546,-661)

a_templebound_spirit (100%)

hole_133, range=120 (864,524,-570)

hole_134, range=105 (878,525,-570)

hole_135, range=58 (928,503,-570)

hole_136, range=102 (952,424,-574)

hole_137, range=93 (933,443,-574)

hole_138, range=78 (972,443,-574)

hole_139, range=15 (970,513,-570)

hole_140, range=55 (1038,533,-582)

a_templebound_spirit (50%)
a_templebound_spirit (50%)

hole_141, range=13 (982,534,-618)

hole_142, range=92 (1072,549,-630)

hole_143, range=109 (876,504,-661)

hole_144, range=107 (879,545,-661)

hole_145, range=159 (826,497,-661)

a_templebound_spirit (50%)
a_templebound_spirit (50%)

hole_146, range=188 (797,501,-661)

hole_178, range=198 (789,482,-638)

a_broken_gargoyle (50%)
a_broken_gargoyle (50%)

hole_180, range=181 (803,515,-679)

hole_185, range=108 (952,625,-574)

hole_186, range=85 (971,606,-574)

hole_187, range=144 (846,476,-655)

a_fallen_erudite_189558, range=153 (839,471,-654)

a_fallen_erudite (50%)
a_fallen_Erudite (50%)

a_wanderer_189600, range=186 (800,488,-654)

a_wanderer (50%)
Ulrik_the_Devout (50%)

a_wanderer_189601, range=131 (859,480,-654)

a_wanderer (100%)

Dartain_the_Lost_189680, range=133 (851,514,-680)

Dartain_the_Lost (100%)