Stricken and half angry, Tremayne stood looking after them as they receded towards the ballroom. To increase his chagrin came a laugh from Miss Armytage, sharp and rather strident, floating towards him, and Miss Armytage’s laugh was wont to be low and restrained. Samoval, no doubt, had resources to amuse a woman—even a woman who instinctively, disliked him—resources of which Captain Tremayne himself knew nothing.

And then some one tapped him on the shoulder. A very tall, hawk-faced man in a scarlet coat and tightly strapped blue trousers stood beside him. It was Colquhoun Grant, the ablest intelligence officer in Wellington’s service.

“Why, Colonel!” cried Tremayne, holding out his hand. “I didn’t know you were in Lisbon.”

“I arrived only this afternoon.” The keen eyes flashed after the disappearing figures of Sylvia and her cavalier. “Tell me, what is the name of the irresistible gallant who has so lightly ravished you of your quite delicious companion?”

“Count Samoval,” said Tremayne shortly.

Grant’s face remained inscrutable. “Really!” he said softly. “So that is Jeronymo de Samoval, eh? How very interesting. A great supporter of the British policy; therefore an altruist, since himself he is a sufferer by it; and I hear that he has become a great friend of O’Moy’s.”

“He is at Monsanto a good deal certainly,” Tremayne admitted.

“Most interesting.” Grant was slowly nodding, and a faint smile curled his thin, sensitive lips. “But I’m keeping you, Tremayne, and no doubt you would be dancing. I shall perhaps see you to-morrow. I shall be coming up to Monsanto.”

And with a wave of the hand he passed on and was gone.

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