The shoring hides a little door.

And we never dared move the props because we thought it held up the tunnel-roof.

It's all part of the old Indian-shelter stunts that this house's builders were so daft about, a hundred years ago.

Hade must have blundered on it or studied it out, one of those times when he used to go poking around in the tunnel, all by himself.

And--" "Did Mr.Brice find him ?" interposed Claire.
"Not he!" said Milo, less buoyantly.