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_13, range=99 (-817,-232,-72)

sirens_62, range=99 (-749,-260,-42)

an_enthralled_bulthar (50%)
an_enthralled_molkor (50%)

sirens_64, range=54 (-694,-147,-149)

sirens_67, range=95 (-827,-214,-72)

an_enthralled_bulthar (50%)
an_enthralled_molkor (50%)

sirens_83, range=49 (-749,-112,-177)

sirens_86, range=90 (-821,-109,-177)

sirens_87, range=1 (-748,-162,-179)

sirens_93, range=51 (-799,-167,-153)

an_enthralled_bulthar (80%)

sirens_94, range=95 (-722,-69,-177)

sirens_117, range=85 (-832,-167,-153)

sirens_118, range=23 (-724,-165,-153)

an_enthralled_bulthar (50%)
an_enthralled_bulthar (50%)

sirens_223847_takp_import_v0, range=98 (-748,-259,-42)

sirens_an_enthralled_bulthar6_takp_import_v0, range=83 (-830,-167,-153)

an_enthralled_bulthar (100%)

sirens_223838_takp_import_v0, range=50 (-748,-111,-178)

an_enthralled_molkor (50%)
a_watery_servant (50%)

sirens_223848_takp_import_v0, range=90 (-820,-108,-177)

an_icy_servant (50%)
a_servant_swordfish (50%)

sirens_223868_takp_import_v0, range=96 (-721,-68,-178)

sirens_223843_takp_import_v0, range=56 (-693,-146,-149)

an_enthralled_molkor (50%)
an_enthralled_ulthork (50%)

sirens_an_enthralled_ulthork16_takp_import_v0, range=24 (-723,-164,-153)

an_enthralled_ulthork (100%)

sirens_223837_takp_import_v0, range=62 (-685,-166,-153)

an_enthralled_bulthar (80%)