The Dragon of the North
An Estonian fairy tale, this version was published in the Yellow Fairy Book by Andrew Lang, in 1894.
Very long ago, as old people have told me, there lived a terrible monster, who came out of the North, and laid waste whole tracts of country, devouring both men and beasts; and this monster was so destructive that it was feared that unless help came no living creature would be left on the face of the earth. It had a body like an ox, and legs like a frog, two short fore-legs, and two long ones behind, and besides that it had a tail like a serpent, ten fathoms in length. When it moved it jumped like a frog, and with every spring it covered half a mile of ground.