Carlota sat down on a sofa, and while Lieutenant Booth was busily arranging a cushion at her back, John Quincy dropped down beside her. The sofa was, fortunately, too small for three.
"I rather expected to see you," he said in a low voice. "I was brought here to meet the best people of Honolulu, and the way I see it, you're the best of all."
She smiled at him, and again the chatter of small talk filled the room. Presently the voice of a tall young man with glasses rose above the general hubbub.
"They got a cable from Joe Clark out at the Country Club this afternoon," he announced.
The din ceased, and every one listened with interest. "Clark's our professional," explained the young man to John Quincy. "He went over a month ago to play in the British Open."
"Did he win?" asked the girl in blue.
"He was put out by Hagen in the semi-finals," the young man said. "But he had the distinction of driving the longest ball ever seen on the St. Andrews course."
"Why shouldn't he?" asked an older man. "He's got the strongest wrists I ever saw on anybody?"
John Quincy sat up, suddenly interested. "How do you account for that?" he asked.
The older man smiled. "We've all got pretty big wrists out here," he answered. "Surf-boarding—that's what does it. Joe Clark was a champion at one time—body-surfing and board-surfing too. He used to disappear for hours in the rollers out by the reef. The result was a marvelous wrist development. I've seen him drive a golf ball three hundred and eighty yards. Yes, sir, I'll bet he made those Englishmen sit up and take notice."
While John Quincy was thinking this over, some one suggested that it was time for the swim, and confusion reigned. A Chinese servant led the way to the dressing-rooms, which opened off the lanai, and the young people trouped joyously after him.
"I'll be waiting for you on the beach," John Quincy said to Carlota Egan.
"I came with Johnnie, you know," she reminded him.
"I know all about it," he answered. "But it was the week-end you promised to the navy. People who try to stretch their week-end through the following Wednesday night deserve all they get."
She laughed. "I'll look for you," she agreed.
He donned his bathing suit hastily in a room filled with flying clothes and great waving brown arms. Lieutenant Booth, he noted with satisfaction, was proceeding at a leisurely pace. Hurrying through a door that opened directly on the beach, he waited under a near-by hau tree. Presently Carlota came, slender and fragile-looking in the moonlight.
"Ah, here you are," John Quincy cried. "The farthest float."
"The farthest float it is," she answered.
They dashed into the warm silvery water and swam gaily off. Five minutes later they sat on the float together. The light on Diamond Head was winking; the lanterns of sampans twinkled out beyond the reef; the shore line of Honolulu was outlined by a procession of blinking stars controlled by dynamos. In the bright heavens hung a lunar rainbow, one colorful end in the Pacific and the other tumbling into the foliage ashore.
A gorgeous setting in which to be young and in love, and free to speak at last. John Quincy moved closer to the girl's side.
"Great night, isn't it?" he said.
"Wonderful," she answered softly.
"Cary, I want to tell you something, and that's why I brought you out here away from the others—"
"Somehow," she interrupted, "it doesn't seem quite fair to Johnnie."
"Never mind him. Has it ever occurred to you that my name's Johnnie, too."
She laughed. "Oh, but it couldn't be."
"What do you mean?"
"I mean I simply couldn't call you that. You're too dignified and—and remote. John Quincy—I believe I could call you John Quincy—"
"Well, make up your mind. You'll have to call me something, because I'm going to be hanging round pretty constantly in the future. Yes, my dear, I'll probably turn out to be about the least remote person in the world. That is, if I can make you see the future the way I see it. Cary dearest—"
A gurgle sounded behind them, and they turned around. Lieutenant Booth was climbing on to the raft. "Swam the last fifty yards under water to surprise you," he sputtered.
"Well, you succeeded," said John Quincy without enthusiasm.
The lieutenant sat down with the manner of one booked to remain indefinitely. "I'll tell the world it's some night," he offered.
"Speaking of the world, when do you fellows leave Honolulu?" asked John Quincy.
"I don't know. To-morrow, I guess. Me, I don't care if we never go. Hawaii's not so easy to leave. Is it, Cary?"
She shook her head. "Hardest place I know of, Johnnie. I shall have to be sailing presently, and I know what a wrench it will be. Perhaps I'll follow the example of Waioli the swimmer, and leave the boat when it passes Waikiki."
They lolled for a moment in silence. Suddenly John Quincy sat up. "What was that you said?" he asked.
"About Waioli? Didn't I ever tell you? He was one of our best swimmers, and for years they tried to get him to go to the mainland to take part in athletic meets, like Duke Kahanamoku. But he was a sentimentalist—he couldn't bring himself to leave Hawaii. Finally they persuaded him, and one sunny morning he sailed on the Matsonia, with a very sad face. When the ship was opposite Waikiki he slipped overboard and swam ashore. And that was that. He never got on a ship again. You see—"
John Quincy was on his feet. "What time was it when we left the beach?" he asked in a low tense voice.
"About eight-thirty," said Booth.
John Quincy talked very fast. "That means I've got just thirty minutes to get ashore, dress, and reach the dock before the President Tyler sails. I'm sorry to go, but it's vital—vital. Cary, I'd started to tell you something. I don't know when I'll get back, but I must see you when I do, either at Mrs. Maynard's or the hotel. Will you wait up for me?"
She was startled by the seriousness of his tone. "Yes, I'll be waiting," she told him.
"That's great." He hesitated a moment; it is a risky business to leave the girl you love on a float in the moonlight with a handsome naval officer. But it had to be done. "I'm off," he said, and dove.
When he came up he heard the lieutenant's voice. "Say, old man, that dive was all wrong. You let me show you—"
"Go to the devil," muttered John Quincy wetly, and swam with long powerful strokes toward the shore. Mad with haste, he plunged into the dressing-room, donned his clothes, then dashed out again. No time for apologies to his hostess. He ran along the beach to the Winterslip house. Haku was dozing in the hall.
"Wikiwiki," shouted John Quincy. "Tell the chauffeur to get the roadster into the drive and start the engine. Wake up! Travel! Where's Miss Barbara?"
"Last seen on beach—" began the startled Haku.
On the bench under the hau tree he found Barbara sitting alone. He stood panting before her.
"My dear," he said. "I know at last who killed your father—"
She was on her feet. "You do?"
"Yes—shall I tell you?"
"No," she said. "No—I can't bear to hear. It's too horrible."
"Then you've suspected?"
"Yes—just suspicion—a feeling—intuition. I couldn't believe it—I didn't want to believe it. I went away to get it out of my mind. It's all too terrible—"
He put his hand on her shoulder.