She threw herself down upon a sofa with a sigh of relief, and pointed to a chair.
"Do sit down, Captain Granet," she begged.

"I am really not in the least insane but father is.

You know, I got back on Wednesday night and was met at once with stern orders that no visitors of any sort were to be received, that the tradespeople were to be interviewed at the front gates--in fact that the house was to be in a state of siege." Granet appeared puzzled.
"But why ?" "Simply because dad has gone out of his senses," she replied wearily.
"Look here." She led him cautiously to the window and pointed downwards.

About fifty yards out at sea was a queer wooden structure, set up on strong supports.

From where they were, nothing was to be seen but a windowless wall of framework and a rope ladder.