"Quite right. It's too strong a word. I take it back," Hardiman agreed at once. But he was not in the habit of using words wildly. He had said exactly what he meant to say, and having aroused the attention which he meant to arouse, he calmly withdrew the word. "I rubbed it into Chichester's thick head that Escobar was overmuch at Rackham Park, and in the end—it percolated."

Much the same account of Escobar, with this instance of Rackham Park omitted, was given to Hillyard by Commodore Graham on the Friday morning.

"He is the kind of man whom men loathe and women like. He runs about London, gets a foot in here and there. You know what London is, even now in the midst of this war, with its inability to be surprised, and its indifference to strange things. You might walk down Regent Street dressed up as a Cherokee Indian, feathers and tomahawk and all, and how many Cockneys would take the trouble to turn round and look at you twice? It was pretty easy for Escobar to slip about unnoticed."

Commodore Graham bent his head over the case of tubes which Hillyard had brought with him.

"We'll have a look-out kept for these things. There have been none of them in England up till now."

Martin Hillyard returned to the personality of Mario Escobar.

"Did you suspect him before?" he asked.

Commodore Graham pushed the cigarettes towards Hillyard.

"Scotland Yard has kept an eye on him. That sort of adventurer is always dangerous."

He rang the bell, and on Miss Cheyne's appearance called for what information the office had concerning Mario Escobar. Miss Cheyne returned with a book in which Escobar's dossier was included.