NPCs composing that spawngroup :

a_siren_beguiler (33%)

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

sirens_13, range=52 (24,-225,-23)

sirens_28, range=97 (104,-175,-135)

sirens_35, range=97 (33,-81,-135)

sirens_38, range=51 (28,-129,-135)

sirens_64, range=84 (29,-257,-28)

sirens_74, range=30 (5,-145,-151)

sirens_77, range=99 (-78,-226,-168)

sirens_122, range=87 (87,-140,-54)

sirens_126, range=74 (36,-106,-80)

sirens_127, range=64 (-49,-143,-117)

sirens_136, range=84 (-58,-121,-110)

sirens_231262, range=83 (29,-256,-28)

sirens_231263, range=97 (-77,-225,-172)

sirens_231277, range=98 (33,-80,-135)

sirens_231278, range=75 (36,-105,-80)