Those who were non-experts in high explosives expected that every pane of glass in New York would be shattered.

But, in reality, the explosive did no harm outside the area intended, although sixteen acres of rock had been mined and only the supporting walls and pillars had been left intact.

The whole of the rocks were shattered." Sir Nathaniel nodded approval.
"That seems a good plan--a very excellent one.

But if it has to tear down so many feet of precipice, it may wreck the whole neighbourhood." "And free it for ever from a monster," added Adam, as he left the room to find his wife..