The Krill

The battle between the Azure Serpent and the krill swarm did not last long, but it was the most terrifying event Sunny had seen since entering the Third Nightmare. 

The Great Beast completely lost its mind as it fought the legion of vile abominations. Stirred by its fury, the water seethed and roiled, sometimes exploding into colossal fountains of scarlet foam, sometimes rising in titanic waves. The magnitude of these undulations was so severe that the whole island rocked and swayed like a ship caught in the middle of a world-ending storm. 

The cacophony of wrathful roars and thunderous sonic booms merged into a deafening litany, to the point that both Sunny and Nephis were forced to plug their ears. 

Thousands of attacking krill were destroyed… but the swarm did not seem diminished at all. Instead, no matter how furiously the Azure Serpent fought, more and more abominations were lunging at it, their thin legs moving in gluttonous anticipation.