NPCs composing that spawngroup :

an_explosion (10%)

an_immobilizer (10%)

an_inactive_trap (10%)

a_dark_entity (10%)

a_formless_terror (10%)

a_magi_construct (10%)

a_null_field (10%)

a_spike_trap (10%)

a_tanglefoot_trap (10%)

a_wizard_construct (10%)

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

necropolis_75, range=60 (464,291,-162)

a_Paebala_Spirit_Talker (100%)

necropolis_88, range=58 (431,405,-162)

an_escaped_worker (50%)
a_Paebala_warrior (50%)

necropolis_89, range=45 (470,312,-160)

a_Paebala_Spirit_Talker (50%)
a_Paebala_warrior (50%)

necropolis_90, range=85 (475,269,-160)

an_escaped_worker (50%)
a_Paebala_warrior (50%)

necropolis_a_Paebala_warrior57, range=28 (431,374,-160)

necropolis_a_Paebala_Spirit_Talker52, range=58 (431,405,-162)

a_Paebala_Spirit_Talker (100%)

necropolis_a_Paebala_rebel53, range=45 (470,312,-162)

a_Paebala_rebel (100%)

necropolis_an_escaped_worker54, range=25 (431,371,-162)

an_escaped_worker (100%)

necropolis_an_inactive_trap14, range=0 (442,348,-162)

an_inactive_trap (100%)