Bigley shook his head, and the remarks were forgotten, as we discovered, just washed in by the tide, a good-sized cuttlefish, that was quite dead, however, having been killed I suppose by being bruised against the rocks, so we were not favoured with a shower of ink.

A little farther on we came to a bare smooth patch of dark sand, over which the sea ran gently, sweeping before it a rim of foam which sparkled and displayed iridescent colours like a soap-bubble. Here we found our first jelly-fish, a beautifully clear disc of transparency about the size of a penny bun, and from which, when we plunged it in the first rock pool, hung down quite a lovely fringe of the most delicate hues.

Perhaps it was too nearly dead from being washed ashore, for it did not sting, as some of these creatures do slightly, when encountered while bathing.

We thought the jelly-fish curious, but it was not good to eat, so it was left in the little rock pool with a few tiny shrimps, to get well or die, and we went on kicking over the little shells, getting our feet wet, and finding more prawn-haunted pools, as we made for one big rock which lay close to the water’s edge, a quarter of a mile farther on, where it stood up in the midst of a clump of smaller ones, the beach around being tolerably level for some distance.

“That’s where old Binnacle always goes when he wants to find a lobster,” said Bigley; “and I shouldn’t wonder if we get one, for he hasn’t been there lately.”

“How do you know?” I said.

“Because he hasn’t sold one, nor given us one, nor had one himself.”

“There, hark at him!” cried Bob. “How can you tell?”

“Easy enough.”

“But how?”