NPCs composing that spawngroup :

#Arturos,_Trainer_of_Bats (100%)

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

dreadspire63256, range=99 (-853,72,-314)

dreadspire63258, range=79 (-968,44,-314)

dreadspire63259, range=79 (-983,17,-310)

dreadspire63261, range=58 (-953,29,-314)

dreadspire63262, range=85 (-986,27,-314)

dreadspire63264, range=44 (-864,-14,-314)

dreadspire63265, range=53 (-933,-57,-314)

dreadspire63268, range=70 (-911,-79,-314)

dreadspire63276, range=96 (-964,-88,-29)