“You’re clever, Templar, but this time you’re mistaken, and persisting in your delusion is making you forget your manners.”

The Saint favoured Carn with a lazy smile.

“Well, well,” he murmured, “to err is human, is not it? But tell me, Dr. Carn, why you allow an automatic pistol to spoil the set of that beautiful coat? Are you afraid of a scarabæus turning at bay? Or is it that you’re scared of a Great White Woolly Wugga-Wugga jumping out of a bush?”

And the Saint swung his heavy staff as though weighing its efficiency as a bludgeon, and the clear blue eyes with that lively devil of mischief glimmering in their depths never left Carn’s red face. Carn glared back chokingly.

“Sir,” he exploded at length, “let me tell you——”

“I, too, was once an Inspector of Horse Marines to the Swiss Navy,” the Saint encouraged him gently; and, when Carn’s indignation proved to have become speechless, he added: “But why am I so unsociable? Come along to the Pill Box and have a spot of supper. I’m afraid it’ll only be tinned stuff—we stopped having fresh meat since a seagull died after tasting the Sunday joint—but our brandy is Napoleon . . . and Orace grills sardines marvellously. . . .”

He linked his arm in Carn’s and urged the naturalist along, chattering irrepressibly. It is an almost incredible tribute to the charm which the Saint could exert, to record that he coaxed Carn into acceptance in three minutes and had him chuckling at a grossly improper limerick by the time they reached the Pill Box.

“You’re a card, Templar,” said Carn as they sat over Martinis in the sitting-room, and the Saint raised indulgent eyebrows.

“Because I called your bluff?”

“Because you didn’t hesitate.”