There was lying in Monaco harbour a long white boat with a stumpy mast, which delighted in the name of _Jungle Queen_. It was the property of an impecunious English nobleman who made a respectable income from letting the vessel on hire.

Mrs. Cole-Mortimer had seemed surprised at the reasonable fee demanded for two months' use until she had seen the boat the day after her arrival at Cap Martin.

She had pictured a large and commodious yacht; she found a reasonably sized motor-launch with a whale-deck cabin. The description in the agent's catalogue that the _Jungle Queen_ would "sleep four" was probably based on the experience of a party of young roisterers who had once hired the vessel. Supposing that the "four" were reasonably drunk or heavily drugged, it was possible for them to sleep on board the _Jungle Queen_. Normally two persons would have found it difficult, though by lying diagonally across the "cabin" one small-sized man could have slumbered without discomfort.

The _Jungle Queen_ had been a disappointment to Jean also. Her busy brain had conceived an excellent way of solving her principal problem, but a glance at the _Jungle Queen_ told her that the money she had spent on hiring the launch--and it was little better--was wasted. She herself hated the sea and had so little faith in the utility of the boat, that she had even dismissed the youth who attended to its well-worn engines.

Mr. Marcus Stepney, who was mildly interested in motor-boating, and considerably interested in any form of amusement which he could get at somebody else's expense, had so far been the sole patron of the _Jungle Queen_. It was his practice to take the boat out every morning for a two hours' sail, generally alone, though sometimes he would take somebody whose acquaintance he had made, and who was destined to be a source of profit to him in the future.

Jean's talk of the cave-man method of wooing had made a big impression upon him, emphasised as it had been, and still was, by the two angry red scars across the back of his hand. Things were not going well with him; the supply of rich and trusting youths had suddenly dried up. The little games in his private sitting-room had dwindled to feeble proportions. He was still able to eke out a living, but his success at his private seances had been counter-balanced by heavy losses at the public tables.

It is a known fact that people who live outside the law keep to their own plane. The swindler very rarely commits acts of violence. The burglar who practises card-sharping as a side-line, is virtually unknown.

Mr. Stepney lived on a plausible tongue and a pair of highly dexterous hands. It had never occurred to him to go beyond his own sphere, and indeed violence was as repugnant to him as it was vulgar.

Yet the cave-man suggestion appealed to him. He had a way with women of a certain kind, and if his confidence had been rather shaken by Jean's savagery and Lydia's indifference, he had not altogether abandoned the hope that both girls in their turn might be conquered by the adoption of the right method.

The method for dealing with Jean he had at the back of his mind.

As for Lydia--Jean's suggestion was very attractive. It was after a very heavily unprofitable night spent at the Nice Casino, that he took his courage in both hands and drove to the Villa Casa.

He was an early arrival, but Lydia had already finished her _petite dejeuner_ and she was painfully surprised to see him.

"I'm not swimming to-day, Mr. Stepney," she said, "and you don't look as if you were either."

He was dressed in perfectly fitting white duck trousers, white shoes, and a blue nautical coat with brass buttons; a yachtsman's cap was set at an angle on his dark head.

"No, I'm going out to do a little fishing," he said, "and I was wondering whether, in your charity, you would accompany me."

She shook her head.

"I'm sorry--I have another engagement this morning," she said.

"Can't you break it?" he pleaded, "as an especial favour to me? I've made all preparations and I've got a lovely lunch on board--you said you would come fishing with me one day."

"I'd like to," she confessed, "but I really have something very important to do this morning."

She did not tell him that her important duty was to sit on the Lovers' Chair. Somehow her trip seemed just a little silly in the cold clear light of morning.

"I could have you back in time," he begged. "Do come along, Mrs. Meredith! You're going to spoil my day."

"I'm sure Lydia wouldn't be so unkind."

Jean had made her appearance as they were speaking.