Sprite's Dance.

~ Beware of the sprites
joyfully dancing in the forest glade.

"Mystical lights bestow daytime
in middle of night.
Tiptoeing the damp morning dew, they
devour wanderers fooled by the creatures
beheld their gaze.

Don't look their way upon hearing distant siren calls,
don't walk further for their lies of warmth.
Bloodless of body; cold as winter's grip.

Don't trust their beauty, nor promising tales;
their kisses bring you nothing but demise.
They dance on your corpse, laugh at your end's cries and
sing with your last breaths.

Beware the forest sprites in middle of night."

~ Possibly Cortinarius sanguineus.