NPCs composing that spawngroup :

#The_Insanity_Crawler_ (25%)

Shadows (25%)

The_stones (25%)

You_can_feel (25%)

NPCs spawning around that spawngroup :
(Max range : 100)

akheva1432086, range=89 (1060,-1650,17)

Centi_Thall (34%)
Xin_Thall (33%)
Xin_Thall (33%)

akheva1432085, range=97 (1100,-1650,17)

Centi_Thall (50%)
Xin_Xakra (50%)

akheva1432075, range=35 (1034,-1715,19)

Sheleric_Vis (100%)

akheva1432074, range=72 (1128,-1714,19)

Sheleric_Vis (100%)

akheva1432072, range=74 (1029,-1807,17)

Xaui_Tatrua (100%)

akheva1432055, range=59 (1085,-1793,44)

#Shei_Vinitras_ (100%)

Xin`Xakre_1433591, range=30 (1060,-1709,19)

Shadows (34%)
The_stones (33%)
You_can_feel (33%)

The_stones_1433664, range=40 (1020,-1739,19)

The_stones_1433665, range=44 (1020,-1719,19)

The_stones_1433666, range=56 (1020,-1699,19)

The_stones_1433677, range=40 (1100,-1739,20)

The_stones_1433678, range=44 (1100,-1719,20)

The_stones_1433679, range=56 (1100,-1699,19)

The_stones_1433686, range=80 (1140,-1739,19)

The_stones_1433687, range=85 (1140,-1709,19)

SheiTrap, range=71 (1085,-1672,18)