"How do you expect to get across the state?" asked the girl, wearily, when late that afternoon, they brought their canoe to a landing. She had slept a little in the boat, but she was still very tired.
"Hitch-hike, I reckon," was the reply. "If we go hirin' any cars, somebody might get suspicious. Once at the coast, I count on rentin' a little fishing-boat from some fellow – one big enough to take us to the island."
"I can't hitch-hike," objected Susie.
"Don't then, – stay here," answered the man, indifferently.
"You know I can't do that, either. Let's go to that house over there, and see if we can't get some supper. Maybe they have an old Ford or a team of horses."
"You foot the bill?" he asked, shrewdly. With all that money in his possession, this man had no intention of spending any of it on anyone but himself.
Susie considered a moment. She hadn't any money at all – she always got what she wanted from her husband. But she owned some costly jewelry.
"I'll give you this diamond," she offered, "if you get me safe out of the country. And no walkin'!"
"O.K.," he muttered, his greedy eyes gleaming at the sight of the beautiful jewel. "You win. Go ask the woman yourself."
It was thus, by strange coincidence, that Susie and the Doc rode across Georgia that evening in the same Ford that had driven Linda and the boys to Jacksonville the night before. They reached a seaport town a little after midnight, and Susie succeeded in finding a house to stay in, though her companion preferred to remain out-doors, for he said he "didn't trust nobody." In the morning, when she joined him, he had rented an old motor-boat from a fisherman. "Rent" was the word he used, but he had not the slightest intention of returning it.
"You can run her, Susie," he said. "You're better at engines than I am, and she'll need coaxing. I'll steer."
It was a difficult cruise, for at times the engine coughed and died, and Susie had to try all sorts of methods to start her up again. When they finally came within sight of the island, the motor sputtered its last and refused to function any longer. The man managed to get the boat inshore by riding the waves, and using the oars kept at the bottom of the boat for just such an emergency.
About the time Linda Carlton and Dot Crowley were eating their lunch on Black Jack Island, Susie and the Doc were making their landing. They pulled in at the opposite shore from the one which the girls later used in the autogiro. The man's first concern was with the hiding-place where he expected to find the boxes of jewels. His disappointment was keen when he discovered that they had been taken away.
"The cops has found us out!" he snarled angrily at Susie, as if it were her fault. "They'll be back again – I'll bet you! We gotta get out of here!"
"How?" demanded Susie. "Not in that boat?"
"Nope. Maybe the yacht will be along early, but it ain't likely. It usually runs after dark."
Dumping his bags in the sand not far from the hole, he tried to think what would be best to do.
"We gotta act quick, Susie – if the cops come. No use tryin' to put up a fight – with only one gun, and them two bags to guard… You watch on that other shore, and I'll go back to the one we came in on. Whatever they come in – airplane or boat – we gotta swipe. Hide if you see anything comin', give 'em a chance to get into the island – and grab their boat. Give me a signal – "
"How?" she interrupted.
"You take the gun, and shoot when you're ready to push off… If I see anybody on my side, I'll whistle, as near like a bird as I can." He grinned to himself; if the police came in anything but an airplane, he wouldn't bother with Susie. Let her face the music!
"O.K. But I couldn't run, Doc. Don't forget that."
"I ain't forgettin'," he returned.
They separated, and for two hours waited tensely, keeping a sharp look-out for the rescuing yacht, hoping against hope that it would arrive before the police. But at three o'clock their worst fears were realized. Susie saw the autogiro coming towards them, and hobbled off into the depths of the island to conceal herself. Lying flat on the sand, she was not able to identify the people who got out of the plane, but she could see that they both wore riding-breeches, and she believed they were men. So she kept still until they had disappeared into the underbrush. Then she began to creep laboriously, in a round-about fashion, to the autogiro.
Susie's progress was slow; she did not reach the plane until after Linda and Dot had succeeded in emptying the bags of the money, and refilled them with sand. The girls had just recognized the man on the shore, and were creeping farther into the island, out of sight of him, when the shot of the pistol rang out above the roar of the ocean. They had no way of knowing that Susie had fired it.
A moment later they heard the rustle and crackle of underbrush, as the man came towards them. From her hiding place, now some distance from the bags, Linda raised her head cautiously, and saw the thief retrieve the bags with a grab. Then he dashed back to the shore, circled the island on the harder sand, and reached the opposite shore, where the autogiro was standing.
"Why doesn't he come after us?" whispered Linda, in amazement.
"He will soon, I'm afraid," replied Dot hoarsely, clutching her revolver tightly. "But I'm going to shoot if he does!"
"So am I," answered Linda, calmly. "We've got the advantage – we're hidden."
Tensely they waited for five minutes – possibly ten; then something they had not thought of happened. The engine of the autogiro began to roar!
"They're stealing the Ladybug!" cried Linda, aghast at such a calamity. "Susie must be with him! Dot, we can't let them do that!"
Regardless of the danger, Linda jumped up excitedly, and rushed to a clearing, where she had a view of the shore. She was just in time to see her beloved autogiro taxi along the beach and rise into the air.
Dot dashed to her side, and the two girls stood together in helpless agony of spirit.
"Prisoners!" cried Dot, at last, dropping her useless revolver into the sand.
"Robinson Crusoes!" added Linda, bitterly. "No better off! No plane!"
"With thousands of dollars!" groaned her companion, ironically. "Where money is no good at all!"
Chapter XIII
The Broken Motor-Boat
The two girls continued to stand perfectly still on the sand, gazing at the retreating autogiro, which apparently was flying out farther over the ocean, and circling about in a strange manner.
"Why don't they fly towards the coast – towards Georgia?" demanded Dot, in bewilderment.
Linda took her spyglasses out of her pocket, and squinted through them at the plane.
"I see a boat!" she exclaimed. "It must be that yacht the gang had arrangements with – to pick up the stuff they steal… Yes, and that's another island… Look, Dot – see if I'm right."
The other girl took the glasses, and confirmed Linda's statement.
"Yes, it is… And the Ladybug's landing on it… Two people getting out – must be Susie and the Doc – and boarding the boat… Linda! They're leaving the plane on the island!"
It was true indeed; taking turns at the glasses, the girls watched the yacht push off into the ocean.
"And here we are – and there's the Ladybug!" remarked Linda, grimly. "Just out of reach! The question is – how to get to her."
"Swim," suggested Dot.
"Maybe you could, Dot. But I'd be afraid of sharks."
"No, I don't think I'll try it either. Besides, the currents probably awfully strong."
"Oh, if Jackson and Hal would only rescue us now!" lamented Linda. "I wouldn't treat them a bit coolly."
The truth of that situation flashed upon Dot.