intact, but the ground on which it was built must have sunk. The house has gone through the crust of ice which forms the foundation of the island. It has not been crushed, but engulfed, and the poor creatures in it"
"Are drowned!" cried Long.
"Yes, Sergeant, drowned without a moment's notice—drowned like passengers on a foundered vessel!"
For some minutes the three men remained silent. Mac-Nab's idea was probably correct Nothing was more likely than that the ice forming the foundation of the island had given way under such enormous pressure. The vertical props which supported the beams of the ceiling, and rested on those of the floor, had evidently aided the catastrophe by their weight, and the whole house had been engulfed.
"Well, Mac-Nab," said Hobson at last, "if we cannot find them alive"
"We must recover their bodies," added the head carpenter.
"And with these words Mac-Nab, accompanied by the Lieutenant, went back to his work at the bottom of the shaft without a word to any of his comrades of the terrible form his anxiety had now assumed.
The excavation continued throughout the night, the men relieving each other every hour, and Hobson and Mac-Nab watched them at work without a moment's rest.
At three o'clock in the morning Kellet's pickaxe struck against something hard, which gave out a ringing sound. The head carpenter felt it almost before he heard it.
"We have reached them!" cried the soldier, "they are saved."
"Hold your tongue, and go on working," replied the Lieutenant in a choked voice.
It was now seventy-six hours since the avalanche fell upon the house!
Kellet and his companion Pond resumed their work. The shaft must have nearly reached the level of the sea, and Mac-Nab there- fore felt that all hope was gone.
In less than twenty minutes the hard body which Kellet had struck was uncovered, and proved to be one of the rafters of the roof. The carpenter flung himself to the bottom of the shaft, and seizing a pickaxe sent the laths of the roof flying on every side. In a few moments a large aperture was made, and a figure appeared at it which it was difficult to recognise in the darkness.
