NPCs composing that spawngroup :

an_enthralled_bulthar (33%)

a_neriad_mistress (33%)

a_siren_seductress (34%)

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

sirens_an_enthralled_bulthar6, range=83 (-830,-167,-153)

an_enthralled_bulthar (100%)

sirens_an_enthralled_ulthork16, range=24 (-723,-164,-153)

an_enthralled_ulthork (100%)

sirens_223837, range=62 (-685,-166,-153)

#Ulth_the_Enraged (20%)
an_enthralled_bulthar (80%)

sirens_223838, range=50 (-748,-111,-178)

an_enthralled_molkor (50%)
a_watery_servant (50%)

sirens_223843, range=56 (-693,-146,-149)

an_enthralled_molkor (50%)
an_enthralled_ulthork (50%)

sirens_223847, range=98 (-816,-231,-72)

sirens_223848, range=90 (-820,-108,-177)

an_icy_servant (50%)
a_servant_swordfish (50%)

sirens_223868, range=96 (-721,-68,-178)