spurtle of smoke from the cone,
followed by subterranean growlings, but, on the whole, the conditions were
reassuring.

"Penny-pop-pinwheel of a volcano, anyhow," remarked Trendon,
disparagingly. "Real man-size eruption would have wiped the whole thing
off the map, first whack."

As they drew in, it became apparent that they must scale the cliff from
the boat. Farther to the south opened out a wide cove that suggested easy
beaching, but over it hung a cloud of steam.

"Lava pouring down," said Trendon.

Fortunately at the point where the cliff looked easiest the seas ran low.
Ropes had been brought. After some dainty manoeuvring two of the sailors
gained foothold and slung the ropes so that the remainder of the
disembarcation was simple. Nor was the ascent of the cliff a harsh task.
Half an hour after the landing the exploring party stood on the summit of
the hill, where the black flag waved over a scene of utter desolation. The
vegetation was withered to pallid rags: even the tiniest weedling in the
rock crevices had been poisoned by the devastating blast.

In the midst of that deathly scene, the flag seemed instinct with a
sinister liveliness. Whoever had set it there had accurately chosen the
highest available point on that side of the island, the spot of all others
where it would make good its signal to the eye of any chance farer upon
those shipless seas. For the staff a ten-foot sapling, finely polished,
served. A mound of rock-slabs supported it firmly. Upon the cloth itself
was no design. It was of a dull black, the hue of soot. Captain Parkinson,
standing a few yards off, viewed it with disfavour.

"Furl that flag," he ordered.

Congdon, the coxswain of the gig, stepped forward and began to work at the
fastenings. Presently he turned a grinning face to the captain, who was
scanning the landscape through his glass.

"Beggin' your pardon, sir," he said.

"Well, what is it?" demanded Captain Parkinson.

"Beggin' your pardon, sir, that ain't rightly no flag. That's what you
might rightly call a garment, sir. It's an undershirt, beggin' your
pardon."

"Black undershirt's a new one to me," muttered Trendon.

"No, sir. It ain't rightly black, look."

Wrenching the object from its fastenings, he flapped it violently. A cloud
of sooty dust, beaten out, spread about his face. With a strangled cry the
sailor cast the shirt from him and rolled in agony upon the ground.

"You fool!" cried Trendon. "Stand b