In Belgian folklore, a water spirit which roams the Flemish country side. This creature, called Kludde, hides in the twilight of dawn and sunset and attacks innocent travelers. Warned travelers listen for the only sound which betrays that Kludde is in the vicinity: the rattling of the chains with which the spirit is covered.
Kludde usually appears in the shape of a monstrous black dog that walks on his hind legs. The faster one walks, the faster this monster follows, often swinging through the trees like a giant snake. No one can ever hope to outrun or escape this creature. The dog is not the only shape in which it can be seen. It can also assume the shape of a huge, hairy, black cat or a horrible black bird.