NPCs composing that spawngroup :

Captain_Dunstan_Coldheart (100%)

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

crystal_2, range=70 (-297,285,-494)

crystal_6, range=148 (-394,280,-494)

a_stalag_terror (50%)
a_stalag_terror (50%)

crystal_14, range=33 (-228,248,-384)

Vevina_Velweaver (50%)
Vevina_Velweaver (50%)

crystal_16, range=128 (-129,204,-364)

Guard_Hollander (100%)

crystal_17, range=126 (-129,236,-364)

Guard_Grabadin (100%)

crystal_20, range=96 (-334,173,-559)

a_velium_crawler (100%)
a_velium_crawler (100%)

crystal_24, range=146 (-241,83,-526)

a_stalag_terror (50%)
a_stalag_terror (50%)

crystal_25, range=69 (-321,206,-384)

Derron_Coldmist (50%)
Derron_Coldmist (50%)

crystal_26, range=135 (-272,363,-428)

Fuller_Velweaver (50%)
Fuller_Velweaver (50%)

crystal_27, range=72 (-317,266,-398)

Guard_Evercold (100%)

crystal_28, range=64 (-316,251,-398)

Guard_Slacey (100%)

crystal_29, range=163 (-93,252,-364)

Guard_Kristen (100%)

crystal_33, range=175 (-241,54,-526)

a_stalag_terror (50%)
a_stalag_terror (50%)

crystal_34, range=144 (-256,373,-428)

Praps_Gemshard (100%)

crystal_35, range=116 (-339,310,-428)

a_Coldain_miner (50%)
a_Coldain_miner (50%)

crystal_36, range=125 (-224,351,-428)

a_Coldain_miner (50%)
a_Coldain_miner (50%)

crystal_37, range=67 (-322,229,-400)

Historian_Baenek (100%)

crystal_38, range=93 (-193,299,-384)

Kramble_Gemshard (100%)

crystal_39, range=8 (-263,233,-384)

Milliace_Gemshard (100%)

crystal_41, range=36 (-261,193,-384)

Guard_Kevin (100%)

crystal_42, range=142 (-363,322,-428)

Flint_Velweaver (100%)

crystal_43, range=169 (-235,397,-373)

Guard_Justik (100%)

crystal_44, range=182 (-232,410,-373)

Guard_Solistak (100%)

crystal_45, range=53 (-243,177,-398)

Hardat_Gemshard (100%)

crystal_46, range=64 (-261,165,-400)

Grabble_Coldheart (100%)

crystal_47, range=162 (-96,261,-400)

Cassia_Gemshard (100%)

crystal_48, range=164 (-95,267,-384)

Nadalia_Coldmist (50%)
Nadalia_Coldmist (50%)

crystal_49, range=28 (-228,238,-400)

Soren_Coldheart (100%)

crystal_51, range=170 (-127,341,-384)

Tacy_MistHeart (50%)
Tacy_MistHeart (50%)

crystal_52, range=139 (-176,344,-400)

Gilliad_Coldheart (100%)

crystal_69, range=123 (-344,143,-526)

a_crystal_crawler (50%)
a_crystal_crawler (50%)

crystal_71, range=150 (-380,145,-524)

a_crystal_crawler (50%)
a_crystal_crawler (50%)

crystal_73, range=192 (-362,69,-523)

a_crystal_spiderling (100%)

crystal_81, range=161 (-362,106,-523)

a_crystal_crawler (100%)

crystal_111144, range=53 (-202,222,-384)

Scout_Grandan (100%)