grace, and too striking an air of habitual liberty, to render it probable. Besides, what should one of the female servants be doing there at this hour, moving to and fro, as it seemed, without any visible purpose? It could scarcely be a stranger; for Claydyke, the nearest village, was ten miles distant; and what female would come ten miles across the fens, for no purpose but to hover over the surf under the walls of Nightmare Abbey? Might it not be a mermaid? It was possibly a mermaid. It was probably a mermaid. It was very probably a mermaid. Nay, what else could it be but a mermaid? It certainly was a mermaid. Mr Asterias stole out of the library on tiptoe, with his finger on his lips, having beckoned Aquarius to follow him.

The rest of the party was in great surprise at Mr Asterias's movement, and some of them approached the window to see if the locality would tend to elucidate the mystery. Presently they saw him and Aquarius cautiously stealing along on the other side of the moat, but they saw nothing more; and Mr Asterias returning, told them, with accents of great disappointment, that he had had a glimpse of a mermaid, but she had eluded him in the darkness, and was gone, he presumed, to sup with some enamoured triton, in a submarine grotto.

'But, seriously, Mr Asterias,' said the Honourable Mr Listless, 'do you positively believe there are such things as mermaids?'

MR ASTERIAS

Most assuredly; and tritons too.

THE HONOURABLE MR LISTLESS

What! things that are half human and half fish?

MR ASTERIAS

Precisely. They are the oran-outangs of the sea. But I am persuaded that there are also complete sea men, differing in no respect from us, but that they are stupid, and covered with scales; for, though our organisation seems to exclude us essentially from the class of amphibious animals, yet anatomists well know that the foramen ovale may remain open in an adult, and that respiration is, in that case, not necessary to life: and how can it be otherwise explained that the Indian divers, employed in the pearl fishery, pass whole hours under the water; and that the famous Swedish gardener of Troningholm lived a day and a half under the ice without being drowned? A nereid, or mermaid, was taken in the year 1403 in a Dutch lake, and was in every respect like a French woman, except that she did not speak. Towards the end of the seventeenth century, an