"That's... a pigeon."
They didn't know from whence it came. But there itwas, all of it! It was large, oblong, and trilled a long mournful note. Mainly it sat immobile and gained weight. No one knew if it ate let alone what it ate, let alone how. It had no visible mouth, or legs, nor ears. It had round eyes with slit pupils, a triangular nose, and whiskers. It was thought that the sound it made would drive a person mad. But it was found that this was drivel. The creature was promptly named marsh mallow and forgotten about.
It was a creature of terror, trilling it's terrible and mournful song. Alone, for the most part since they didn't associate too terribly much, they had expansive territories. That is, if a few feet could be considered expansive. They somehow multiplied at a ferocious rate. Amazing considering the fact that they didn't associate. And they were impervious to injury.
So the military used them as trebuchet shot. One hit from a marsh mallow, and: The marsh mallow falls on castle walls + slowly crumbles all it's glory,
the long trill shakes all the lakes + the wildgrack leaps in victory.
Trill critter, trill, set the fear filled troops a flying.
Yell, soldier, yell: answer, 'mallows, falling, falling, falling.
O dark + dreary & how thick + clearly + thicker, clearer, fatly glowing how sloppy with tar + as big as a car.
No! close your ears the bloated thing is crying
slowly the huge thing answers echoes dying, dying, dying.
Like a dove she flies in yon kitchen sky then faints in the doorway or livingroom for show
her echoes rumble from door to door + she grows for ever + evermore.
Trill critter, trill, set the fear filled people running + answer she the echoes answer with more 'mallows falling, falling, falling.
Marsh mallows were known to be huge. And the trilling was deafening. They trilled if you got too close to them and were unfortunate enough to catch it's attention. And they will follow you till you die! They somehow hop/ ooze along on their oblong bodies and make destruction in their paths. And it was written that the fuzzy coated creatures would someday engulf the world with their considerable mass. Count it good that the creatures only inhabit swampland as a natural habitat....