A Day with the Sea Urchins. 9 had seen (and you must remember they can see you, though you cannot see them) a Land Urchin, whom they had been watching, swimming about in the sea, seized by a huge creature all dressed in blue, and carried off to prison in spite of his prayers and tears, and they heard it was because he had no clothes on. Now you and I know that this creature was a policeman, or if you are foolish enough to use slang words you would †perhaps call him a “bobby,†but the Sea Urchins knew nothing of policemen, or of “ bobbies†either, and they said to each other that an Erinnys had got the boy, and