San Diego Bay is always interesting, with its shipping from all ports of the world, but on this gorgeous Sunday afternoon there was no prettier sight among the scattered craft than the trim yacht Salvador, lying at anchor just north of the ferry path. The Kane-Cumberford party found a small launch awaiting them at the pier, which quickly took them aboard the big white yacht, where Madeline, attired in appropriate sailor costume, cordially welcomed them.

"This affair is fully as great a novelty to me as it must be to you," she explained, as they cast admiring glances over the decks. "I bought the boat of an Englishman several months ago, with the understanding it should be delivered to me here; but I only arrived to claim it the day before yesterday. It has a crew of seven, besides the chef, who, I must admit, is my own selection, as I feared to trust the English taste in cookery. The English crew, however, seems capable and every man jack wants to stay with the boat; so I've agreed to keep them. I'll introduce you to the skipper presently. He rejoices in the title of 'Captain' and has quite awed me with his superior manner and splendid uniform. But I'll introduce you to the creations of my chef, first, for dinner is waiting. Forgive Monsieur Champetre, if he falls down occasionally; he is as unused to the kitchen—or is it scullery? Oh, I know; the 'galley'—as I am to the cabin."

Really the chef needed no excuses, and after the meal they made a thorough inspection of the beautiful craft, peeping into the state-rooms, the men's quarters and even into the sacred galley. Everyone aboard, including the big, bluff skipper, was so proud of the boat that he delighted to have it exhibited, and when it was understood that the slim, beautiful young lady guest was the famous Flying Girl the deference shown Orissa was amusing.

"I had intended to test the Salvador to-morrow and make a short run to sea in it," said Madeline; "but I am so eager to witness the aËrial exhibitions that I shall postpone the voyage until later. My yacht is permanent, but this Aviation Meet is temporary."

The visitors returned to their hotel early in the afternoon, for Orissa and Sybil had still a few preparations to make for the morrow's trip, while Steve and Mr. Cumberford decided to pay a visit to the aviation field, to which both the Kane Aircraft and the Kane Hydro-Aircraft had been removed by the mechanicians in charge of them. Chesty Todd's labors that Sunday evening were perhaps more onerous than those of the others of his party, for he had to meet an aggressive band of newspaper reporters and load each one to the brim with material for a double-header next morning. Having served as a journalist—and an able one—himself, Mr. Radley-Todd understood exactly the sort of priming these publicity guns required.

The home of the Kanes was a delightful orange ranch near Los Angeles, where the blind mother of Stephen and Orissa—their only parent—lived surrounded by every comfort and devoted attendants, while her boy and girl were engaged in the novel and somewhat hazardous exhibitions of the new Kane Aircraft. Orissa had remained at home with her mother while Stephen was perfecting his latest machine at San Diego, and had not left there until it was necessary to prepare for the Meet, in which she had engaged to take part. Mrs. Kane, perhaps because of her blindness, seemed to have little anxiety on account of her daughter's ventures, although at the time of Orissa's first flights her nervousness had been poignant. Assured of her girl's skill and coolness, the mother had come to accept these occasions philosophically, as far as the danger was concerned, and she was naturally interested in Steve's inventions and overjoyed at the financial success which Mr. Cumberford's business ability had already insured the firm.

This Sunday evening Orissa wrote a long letter to her mother, telling how perfectly her brother's new machine worked, and assuring Mrs. Kane of her confidence in winning new laurels for Stephen on the morrow. "The latest engine, made for the Hy, is more powerful than were the others," she added, "but its operation is practically the same and while the combination of boat and aircraft necessitated a more complicated arrangement of the control, I have easily mastered all the details and could take the whole thing apart and put it together again, if obliged to do so."

The girl slept peacefully that night and neither she nor Sybil were in the least nervous when they went to the aviation field, overlooking the sea, after an early luncheon on Monday.

They found the Kane Hydro-Aircraft reposing majestically in its hangar, in perfect order and constantly surrounded by a group of admiring and interested spectators. The little band of professional aviators present at the Meet welcomed Orissa very cordially, for every one of them knew and admired the brave girl who had so often proved her ability to manage her brother's machines.

The grand stand was packed with spectators, and long rows of automobiles lined the edge of the enclosure reserved for the exhibitors.

The "Kane Event," as it was called, was early on the program of the day, for it was understood that the flight over the ocean and the voyage back would consume much of the afternoon. Many had brought binoculars and other powerful glasses to watch the Flying Girl and her chum during their progress.

Sealskin Island lay a little to the south of the aviation field and was one of a group of barren rocks jutting out of the sea and plainly visible from the mainland. The Coronado Islands, which have little or no value, belong to Mexico, as the Mexican boundary is only twelve miles south of San Diego, and this group, although not appearing to be so far south, is below the line claimed by the United States. Therefore Orissa's flight would be in a southwesterly direction and most of her journey made in plain view of every spectator.

As the "Hy" was run out to the center of the field Steve said to Orissa:

"I've anchored an aluminum chest just back of your seats, at the suggestion of Mr. Cumberford. In it are all the tools you could possibly need in case of emergency, a couple of warm blankets to use if your return trip proves chilly, and enough 'lunch'—which I think Sybil pleaded for—to last you both a week. The chest enables you to carry all this safely and comfortably, and it won't be at all in your way. Personally, I think such a precaution wholly unnecessary, but Mr. Cumberford is a good deal of an old woman where Sybil is concerned and it is easier to give up to him than to try to argue him out of an idea. Take the trip easy, Ris; we don't need to make time. What we want to demonstrate is the practicability of the machine, and we ourselves already know that it is thoroughly practical, and we therefore ought to be able to convince the world of the fact."

Orissa nodded.

"How about gasoline?" she asked.

"Both tanks are filled. There's enough to run you a hundred miles in air and fifty miles in water, which is far more than you will require. Be gentle with the steering gear; it is such a long connection that it doesn't respond as readily as the old one, and I guess I've made the rods a trifle too light. I mean to rig up a more substantial device as soon as I get time, but this will do you all right if you don't jerk it. Put a little more strength to the wheel and turn it gradually, that's all."

"I understand," she replied. "Are you ready, Sybil?"

"Waiting on you, Ris."

"And I think the crowd is waiting on us."

The band was at this moment playing its loudest and most stirring tune and as the two venturesome girls, dressed in appropriate aËrial costume, appeared on the field, wildly enthusiastic shouts rose from ten thousand spectators. Chesty Todd had decorated the braces of the machine with bunches of fresh violets and the aluminum and nickeled parts shone gloriously in the sun.

"Be good, Sybil," said Mr. Cumberford. "Take care of her, Orissa."

The girls laughed, for this was the old gentleman's customary parting warning.

"All right, Ris," said Steve.

She applied the power and one of the mechanicians gave the propeller a preliminary whirl. Then Orissa threw in the automatic clutch that started the machine and it ran forward a few feet and promptly rose into the air. A moment later it was speeding straight out to sea, at an altitude of a hundred feet, and the wonderful voyage of Stephen Kane's new Hydro-Aircraft was begun—a voyage destined to vary considerably from the program mapped out for it.