NPCs composing that spawngroup :

a_rock_sentinel (100%)

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

thundercrest_monocle_256, range=188 (-294,2470,177)

thundercrest_monocle_264, range=150 (-631,2474,177)

thundercrest_monocle_270, range=144 (-498,2311,177)

thundercrest_monocle_278, range=130 (-439,2332,183)

thundercrest_monocle_280, range=123 (-486,2332,183)

thundercrest_monocle_282, range=164 (-476,2291,177)

thundercrest_monocle_8_2, range=130 (-439,2332,183)

thundercrest_monocle_8_48, range=188 (-294,2470,177)

thundercrest_monocle_8_59, range=158 (-631,2401,177)

thundercrest_monocle_8_61, range=164 (-476,2291,178)

thundercrest_monocle_8_64, range=185 (-600,2311,160)

thundercrest_monocle_11_3, range=130 (-439,2332,183)

thundercrest_monocle_11_21, range=188 (-294,2470,177)

thundercrest_monocle_11_24, range=150 (-631,2474,177)

thundercrest_monocle_11_25, range=158 (-631,2401,177)

thundercrest_monocle_11_33, range=164 (-476,2291,178)

thundercrest_monocle_11_35, range=191 (-609,2311,160)

thundercrest_monocle_12_35, range=130 (-439,2332,183)