It was a dark, damp night on the New York docks, as the Ninja Turtles silently patrolled between the shipping containers and shadows of the ships. Strange rumors circulated around the city, telling of sightings of a sea monster prowling the waters in the darkness. The four brothers, alert, couldn't ignore the feeling that they were being watched from the depths.

"Do you feel that?" Raphael asked, his Sais in hand, looking out at the restless water.

"Yes, as if something is stalking us," Leonardo replied, his Ninjatōs at the ready, keeping a fixed gaze on the dark horizon.

An angelic voice, soft and deeply mesmerizing, echoed through the air. The words were unintelligible, but the tone was so alluring that the brothers immediately stopped, as if the melody was enveloping them.

"What is that?" Donatello asked, gripping his Bō tightly.

“Whatever it is, I don’t like it,” Michelangelo muttered, holding his Nunchucks, his eyes wide. “It’s like that voice is… pulling me.”

Before they could fully react, a swift, brutal attack emerged from the shadows. Something struck the four brothers, sending them flying through the air and into the dark, cold water of the dock. Plunged into the depths, chaos took hold as they tried to get their bearings.

Through the murky water, something bright and strange caught their attention: a fish tail, long and full of scales, glistening under the moonlight filtering through the waves. When their eyes finally adjusted, they saw the ethereal and dangerous figure of a mermaid.

In a desperate attempt to survive, the four brothers swam to the surface, fleeing the mythological being that had attacked them.

Michelangelo, his heart racing, muttered, "I don't think Fishtail is friendly." Mikey had a gift for baptizing names.