They did not need glasses to see. A flying film, strangely marked, seemed drawing over the surface of the lagoon. Abreast of it, along the atoll, travelling with equal speed, was a stiff bending of the cocoanut palms and a blur of flying leaves. The front of the wind on the water was a solid, sharply defined strip of dark-coloured, wind-vexed water. In advance of this strip, like skirmishers, were flashes of windflaws. Behind this strip, a quarter of a mile in width, was a strip of what seemed glassy calm. Next came another dark strip of wind, and behind that the lagoon was all crisping, boiling whiteness.
“What is that calm streak?” Mulhall asked.
“Calm,” Warfield answered.
“But it travels as fast as the wind,” was the other's objection.
“It has to, or it would be overtaken and it wouldn't be any calm. It's a double-header, I saw a big squall like that off Savaii once. A regular double-header. Smash! it hit us, then it lulled to nothing, and smashed us a second time. Stand by and hold on! Here she is on top of us. Look at the Roberta!”
The Roberta, lying nearest to the wind at slack chains, was swept off broadside like a straw. Then her chains brought her up, bow on to the wind, with an astonishing jerk. Schooner after schooner, the Malahini with them, was now sweeping away with the first gust and fetching up on taut chains. Mulhall and several of the Kanakas were taken off their feet when the Malahini jerked to her anchors.
And then there was no wind. The flying calm streak had reached them. Grief lighted a match, and the unshielded flame burned without flickering in the still air. A very dim twilight prevailed. The cloud-sky, lowering as it had been for hours, seemed now to have descended quite down upon the sea.
The Roberta tightened to her chains when the second head of the hurricane hit, as did schooner after schooner in swift succession. The sea, white with fury, boiled in tiny, spitting wavelets. The deck of the Malahini vibrated under the men's feet. The taut-stretched halyards beat a tattoo against the masts, and all the rigging, as if smote by some mighty hand, set up a wild thrumming. It was impossible to face the wind and breathe. Mulhall, crouching with the others behind the shelter of the cabin, discovered this, and his lungs were filled in an instant with so great a volume of driven air which he could not expel that he nearly strangled ere he could turn his head away.
“It's incredible,” he gasped, but no one heard him.
Hermann and several Kanakas were crawling for'ard on hands and knees to let go the third anchor. Grief touched Captain Warfield and pointed to the Roberta. She was dragging down upon them. Warfield put his mouth to Grief's ear and shouted: