This bizarre creature is like an enormous *flying* mudskipper - about the same size as a whale - and it leaves a noxious cloud of gas in its wake. It should look like it smells really bad. Its skin glistens with wetness.
"Many believe it to be the manifestation of all that is vile about the boggarts. I believe it should be avoided - from upwind, if possible." - Cenn Deagan