NPCs composing that spawngroup :

#The_Crypt_Spectre (20%)

#The_Skeleton_Sepulcher (20%)

a_crypt_guardian (20%)

a_crypt_spectre (20%)

a_skeletal_watchman (20%)

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

charasis_44, range=81 (-271,45,4)

an_undertaker_skeleton (50%)
a_sepulcher_skeleton (50%)

charasis_52, range=135 (-267,-127,22)

hexbone_skeleton (100%)

charasis_55, range=152 (-484,-32,3)

a_pulsating_bile (100%)
a_pulsating_bile (100%)

charasis_57, range=166 (-460,-117,4)

charasis_58, range=72 (-269,25,4)

a_sepulcher_skeleton (100%)
a_sepulcher_skeleton (100%)

charasis_59, range=144 (-274,-140,23)

charasis_60, range=134 (-250,-114,22)

charasis_62, range=126 (-223,-71,22)

charasis_93, range=133 (-367,-137,4)

charasis_94, range=104 (-389,-96,4)

charasis_96, range=24 (-351,8,14)

a_sepulcher_skeleton (100%)

charasis_97, range=75 (-408,4,14)

an_undertaker_skeleton (50%)
a_pulsating_bile (50%)

charasis_98, range=137 (-284,120,5)

a_helot_spectre (100%)

charasis_103, range=199 (-273,182,4)

charasis_104, range=146 (-368,134,4)

a_sepulcher_skeleton (100%)

charasis_105, range=182 (-440,-156,5)

charasis_108, range=141 (-390,-138,4)

charasis_109, range=94 (-367,-96,5)

charasis_160, range=14 (-332,6,14)

charasis_161, range=195 (-444,153,4)

charasis_164, range=177 (-443,131,5)

charasis_165, range=192 (-226,152,4)

charasis_178, range=106 (-244,-66,-127)

a_sepulcher_skeleton (100%)

charasis_179, range=56 (-387,10,-139)

a_bottomless_feaster (100%)

charasis_180, range=106 (-227,-21,-122)

charasis_181, range=77 (-257,-22,-122)

a_crypt_spectre_189513, range=194 (-439,-171,5)

a_crypt_spectre_189514, range=182 (-237,147,5)