Somewhere on the west coast of Ireland the Dulverton property included a few acres of shingle, rock, and heather, too barren to support even an agrarian outrage, but embracing a small and fairly deep bay where the lobster yield was good in most seasons. There was a bleak little house on the property, and for those who liked lobsters and solitude, and were able to accept an Irish cook’s ideas as to what might be perpetrated in the name of mayonnaise, Innisgluther was a tolerable exile during the summer months. Lulu seldom went there herself, but she lent the house lavishly to friends and relations. She put it now at Vasco’s disposal.

“It will be the very place to practise and experiment with the salvage apparatus,” she said; “the bay is quite deep in places, and you will be able to test everything thoroughly before starting on the treasure hunt.”

In less than three weeks Vasco turned up in town to report progress.