Surely a strange sort of criminal, she thought, with his humour and ready address, his sudden shifts from slang of the street to phrases chosen with a discriminating taste in English, his cool indifference to her threatening attitude, and his paradoxical pose of warm--it seemed--personal interest in and consideration for a complete and, to say the least, very questionable stranger.

She even went so far as to admit that she might find him very likable, if only it were not for that affected little moustache and that semi-occasional trick he practised of looking down his nose when he talked.

On the other hand, one assumed, all criminals must seem strange types to the amateur observer. Come to think of it, she had no standard to measure this man by, and knew no law that prescribed for his kind either dress clothing with an inverness and a mask of polished imperturbability, or else a pea-jacket, a pug-nose, a cauliflower ear, with bow legs and a rolling gait. . . .

"There, I fancy that will do. But hurry it along, please."

"Very good, sir--immediately."

The head waiter ambled off, and Blue Serge faced Sally with an odd, illegible smile.

"At last!" he hissed in the approved manner of melodrama, "we are alone!"

She wasn't able to rise to his irresponsible humour. Thus far her audacity seemed to have earned her nothing but his derision. He was not in the least afraid of her--and he was a desperate criminal. Then what was she in his esteem?

Such thoughts drove home a fresh painful realisation of her ambiguous personal status. It began to seem that she had been perhaps a little hasty in assuming she was to be spared punishment for her sin, however venial that might in charity be reckoned. Chance had, indeed, offered what was apparently a broad and easy avenue of escape; but her own voluntary folly has chosen the wrong turning.

Her hands were twisted tight together in her lap as she demanded with tense directness: