Night Terror's Evolution

Northern was struck with a whirlwind of confusion. He stared, dazed as the stalwart monster fought with itself.

Something was happening to it, its body was changing and the change seemed to come with a harrowing pain.

'Stupid! stupid! stupid! stupid!'

These words resounded in Northern's head over and over again. He thought he had cracked it all but he looked past one thing.

Only one being was allowed to be a deviant. To be different from other monsters, stronger than other monsters.

It was the guardian of a gate.

However, there were two. Northern not only failed to consider the possibility of there being two guardians but also failed to evaluate this fact and place more suspicion on Night Terror:

If the castle lord was the rift guardian. What then is Night Terror.

One could also not blame him, he knew nothing about rift after all.