"Wasn't the deck patrolled?" asked Patsy, the first to recover.

"We don't set a watch till ten-thirty. It wasn't considered necessary.

But I had no suspicion of the trick Elbl has played on me to-night," he added with a groan. Their voices had aroused others. Ajo came out of his room, enveloped in a heavy bathrobe, and soon after Maud and Beth joined them.

"What's up?" demanded the boy.

"The German has tricked us and made his escape," quietly answered Dr.

Gys. "For my part, I'm glad of it."

"It was a conspiracy," growled the captain. "That rascal, Maurie--"

"Oh, was Maurie in it?"

"Of course. He was the decoy; perhaps he arranged the whole thing."

"Didn't the general want you, then?"

Carg was so enraged that he fairly snorted.

"Want me? Of course he didn't want me! That treacherous little Belgian led me into the waiting room and said the general would see me in a minute. Then he walked away and I sat there like a b.u.mp on a log and waited. Finally I began to wonder how Maurie, who was always shy of facing the authorities, had happened to be the general's messenger. It looked queer. Officers and civilians were pa.s.sing back and forth but no one paid any attention to me; so after an hour or so I asked an officer who entered from an inner room, when I could see the general. He said the general was not there evenings but would be in his office to-morrow morning. Then I showed him my order and he glanced at it and said it was forged; wasn't the general's signature and wasn't in proper form, anyhow. When I started to go he wouldn't let me; said the affair was suspicious and needed investigation. So he took me to a room full of officers and they asked me a thousand fool questions. Said they had no record of a Belgian named Maurie and had never heard of him before. I couldn't figure the thing out, and they couldn't; so finally they let me come back to the ship."

"Strange," mused Uncle John; "very strange!"

"I was so stupid," continued Carg, "that I never thought of Elbl being at the bottom of the affair until I got back and found our launch missing. Then I remembered that Elbl was to have been turned over to the prison authorities to-morrow and like a flash I saw through the whole thing."

"I'm blamed if _I_ do," declared Mr. Merrick.

The others likewise shook their heads.

"He got me out of the way, stole the launch, and is half way to Ostend by this time."

"Alone? And wounded--still an invalid?"

"Doubtless Maurie is with him. The rascal can run an automobile; so I suppose he can run a launch."

"What puzzles me," remarked Patsy, "is how Lieutenant Elbl ever got hold of Maurie, and induced him to a.s.sist him, without our knowing anything about it."

"I used to notice them talking together a good bit," said Jones.

"But Clarette has kept Maurie a prisoner. She wouldn't let him come back to the ship."

"He was certainly at liberty to-night," answered Beth. "Isn't this escape liable to be rather embarra.s.sing to us, Uncle John?"

"I'm afraid so," was the reply. "We agreed to keep him safely until the authorities demanded we give him up; and now, at the last minute, we've allowed him to get away."

Anxiety was written on every countenance as they considered the serious nature of this affair. Only Gys seemed composed and unworried.

"Is it too late to go in chase of the launch?" asked Ajo, breaking a long pause. "They're headed for Ostend, without a doubt, and there's a chance that they may run into a sand-bank in the dark, or break down, or meet with some other accident to delay them."

"I believe it's worth our while, sir," answered Carg. "The launch we have is the faster, and the trip will show our good faith, if nothing more."

"Then make ready to start at once," said Ajo, "and I'll dress and go along."

Carg hurried away to give orders and the boy ran to his stateroom. Five minutes later they were away, with four sailors to a.s.sist in the capture of the fugitives in case they were overtaken.

It was a fruitless journey, however. At daybreak, as they neared Ostend, they met their stolen launch coming back, in charge of a sleepy Belgian who had been hired to return it. The man frankly stated that he had undertaken the task in order to get to Dunkirk, where he had friends, and he had been liberally paid by a German on crutches, who had one foot missing, and a little Belgian whom he had never seen before, but who, from the description given, could be none other than Maurie.

They carried the man back with them to the _Arabella_, where further questioning added nothing to their information. They now had proof, however, that Elbl was safe with his countrymen at Ostend and that Maurie had been his accomplice.

"I would not believe," said Patsy, when she heard the story, "that a Belgian could be so disloyal to his country."

"Every nation has its quota of black sheep," replied Uncle John, "and from what we have learned of Maurie's character he is not at all particular which side he serves."

CHAPTER XX

THE DUNES

The escape of a prisoner of war from the American hospital ship was made the subject of a rigid inquiry by the officials and proved extremely humiliating to all on board the _Arabella_. The commandant showed his irritation by severely reprimanding Mr. Merrick for carelessness, while Captain Carg had to endure a personal examination before a board of inquiry. He was able to prove that he had been at headquarters during the evening of the escape, but that did not wholly satisfy his inquisitors. Finally an order was issued forbidding the Americans to take any more wounded Germans or Austrians aboard their ship, and that seemed to end the unpleasant affair.

However, a certain friction was engendered that was later evidenced on both sides. The American ambulance was no longer favored on its trips to the front, pointed preference being given the English and French Red Cross Emergency Corps. This resulted in few wounded being taken to the _Arabella_, as the Americans confined their work largely to a.s.sisting the injured on the field of battle. The girls were not to be daunted in their determined efforts to aid the unfortunate and every day one of them visited the trenches to a.s.sist the two doctors in rendering first aid to the wounded.

The work was no longer arduous, for often entire days would pa.s.s without a single casualty demanding their attention. The cold weather resulted in much sickness among the soldiers, however, and Gys found during this period of military inactivity that his medicine chest was more in demand than his case of surgical instruments.

A slight diversion was created by Clarette, who came to the ship to demand her husband from the Americans. It seemed almost impossible to convince her that Maurie was not hidden somewhere aboard, but at last they made the woman understand he had escaped with the German to Ostend. They learned from her that Maurie--or Henri, as she insisted he was named--had several times escaped from her house at night, while she was asleep, and returned at daybreak in the morning, and this information led them to suspect he had managed to have several secret conferences with Lieutenant Elbl previous to their flight. Clarette announced her determination to follow her husband to Ostend, and perhaps she did so, as they did not see her again.

It was on Sunday, the twentieth of December, that the Battle of the Dunes began and the flames of war burst out afresh. The dunes lay between the North Sea and the Yser River in West Flanders and consisted of a stretch of sandy hillocks reaching from c.o.xyde to Nieuport les Bains. The Belgians had entrenched these dunes in an elaborate and clever manner, shoveling the sand into a series of high lateral ridges, with alternate hollows, which reached for miles along the coast. The hollows were from six to eight feet deep, affording protection to the soldiers, who could nevertheless fire upon the enemy by creeping up the sloping embankments until their heads projected sufficiently to allow them to aim, when they could drop back to safety.

In order to connect the hollows one with another, that an advance or retreat might be made under cover, narrow trenches had been cut at intervals diagonally through the raised mounds of sand. Military experts considered this series of novel fortifications to be practically impregnable, for should the enemy defile through one of the cross pa.s.sages into a hollow where the Allies were gathered, they could be picked off one by one, as they appeared, and be absolutely annihilated.

Realizing this, the Germans had not risked an attack, but after long study of the defences had decided that by means of artillery they might sh.e.l.l the Belgians, who held the dunes, and destroy them as they lay in the hollows. So a heavy battery had been planted along the German lines for this work, while in defence the Belgians confronted them with their own famous dog artillery, consisting of the deadly machine guns. The battle of December twentieth therefore began with an artillery duel, resulting in so many casualties that the Red Cross workers found themselves fully occupied.

Beth went with the ambulance the first day, worked in the hollows of the dunes, and returned to the ship at night completely worn out by the demands upon her services. It was Patsy's turn next, and she took with her the second day one of the French girls as a.s.sistant.

When the ambulance reached the edge of the dunes, where it was driven by Ajo, the battle was raging with even more vigor than the previous day.

The Germans were dropping sh.e.l.ls promiscuously into the various hollows, hoping to locate the hidden Belgian infantry, while the Belgian artillery strove to destroy the German gunners. Both succeeded at times, and both sides were equally persistent.

As it was impossible to take the ambulance into the dunes, it was left in the rear in charge of Jones, while the others threaded their way in and out the devious pa.s.sages toward the front. They had covered fully a mile in this laborious fashion before they came upon a detachment of Belgian infantry which was lying in wait for a call to action. Beyond this trench the doctors and nurses were forbidden to go, and the officer in command warned the Americans to beware of stray sh.e.l.ls.

Under these circ.u.mstances they contented themselves by occupying some of the rear hollows, to which the wounded would retreat to secure their services. Dr. Kelsey and Nanette, the French girl, established themselves in one hollow at the right, while Dr. Gys and Patsy took their position in another hollow further to the left. There they opened their cases of lint, plaster and bandages, spreading them out upon the sand, and were soon engaged in administering aid to an occasional victim of the battle.

One man who came to Patsy with a slight wound on his shoulder told her that a sh.e.l.l had exploded in a forward hollow and killed outright fifteen of his comrades. His own escape from death was miraculous and the poor fellow was so unnerved that he cried like a baby.

They directed him to the rear, where he would find the ambulance, and awaited the appearance of more patients. Gys crawled up the mound of sand in front of them and cautiously raised his head above the ridge.

Next instant he ducked to escape a rain of bullets that scattered the sand about them like a mist.