"I'm afraid so.

However, we must do the best we can in the time we have left." They worked by a blast-lamp until late at night and began again before daybreak in the morning.

The weakened frame had been replaced, but others needed strengthening and the rockwork must be built up among the timbers.

The stones required careful fitting, and it was impossible to dress them to rough shape.

The frozen surface resisted the tool and they broke if much force was used.