Bestiary › Will-o-tail

The Will-o-tail is a graceful and mesmerising presence within the darker waters of the swamp, its long, ribbon-like body moving with a fluid elegance that seems almost hypnotic. Along its spine runs a series of softly glowing spots, casting gentle light that shimmers through the water as it swims.

These lights are not constant. The Will-o-tail can control their intensity, dimming them to near invisibility or brightening them into vivid, trailing patterns. When in motion, this creates long, drifting ribbons of light that linger briefly before fading, giving the impression that the creature is painting the water with each movement.

It is widely believed that these glowing trails serve a purpose beyond simple display. Many zoologists suggest that the Will-o-tail uses them to lure prey, drawing smaller creatures towards the light before striking, or deeper into the fens to drown in treacherous depths. The gentle, wavering patterns are difficult to ignore, particularly in the darker regions of the swamp where visibility is limited.

Unlike more aggressive hunters, the Will-o-tail relies on subtlety. It does not chase or pursue with speed, instead guiding its prey into position through careful movement and controlled displays of light. By the time its target realises the danger, escape is often no longer possible.

Despite this predatory behaviour, the Will-o-tail is not considered particularly dangerous to larger travellers. It tends to avoid anything significantly bigger than itself, retreating quickly if disturbed. Encounters are usually limited to brief glimpses of light moving beneath the surface.

There is something undeniably captivating about the Will-o-tail. Even those aware of its hunting methods often find themselves drawn to its glow, watching as it drifts silently through the water.

It is a creature that embodies the swamp's quieter dangers - not loud or violent, but patient, alluring, and just a little too beautiful to trust.