Original sentence: A large number of people had gathered to witness the spectacle at the Government House.There were bonfires on the hills.They reached Government House at 7.00–7.30 in the evening, the sun had set and darkness began to set in
Edited sentence: A large number of people had gathered to witness the spectacle at Government House, and there were bonfires on the hills.They reached Government House at 7.00–7.30 in the evening, as darkness was beginning to set in