They followed it out of the gateway and into the avenue of Diana's Grove.
Here a new gravity clouded Adam's face, though Mimi saw no cause for fresh concern.

This was easily enough explained.

Adam knew of the explosive works in progress regarding the well-hole, but the matter had been kept from his wife.

As they stood near the house, Adam asked Mimi to return to the road, ostensibly to watch the course of the wire, telling her that there might be a branch wire leading somewhere else.

She was to search the undergrowth, and if she found it, was to warn him by the Australian native "Coo-ee!" Whilst they were standing together, there came a blinding flash of lightning, which lit up for several seconds the whole area of earth and sky.