Cassius followed the black mist as it flew through the castle.
He saw the array in the iron cage flickering, countless blood slaves howling as they exploded, turning into ghostly black mist, rushing in a certain direction.
"These blood slaves have all been sacrificed..."
"Their destination is probably the outside world."
Thinking of this, Cassius stopped chasing and instead flapped his wings to fly upwards, his massive dragon body crashing through walls and ceilings made of stone, rampaging through the fortress.
Quickly, with the continuous collapse of the buildings behind him, Cassius swiftly reached the outside.
However, the scene before his eyes had changed drastically from before.
There was neither a bright moon nor a starry sky in the outside world at this moment.
It was a night without light.
The sky overhead was shrouded in heavy shadow, resembling a deep black canopy.