"To lie close until it gets dark."

"But why that tree? It's on the edge of the wood. Why not go further in, where it's ever so much thicker?"

"Because if the Huns track us this far they'll naturally conclude that we've bolted for cover. They'll doubtless beat the interior of the wood and not pay much attention to the part nearest the ca.n.a.l.

Besides, from this particular tree we can command a wide outlook without running much risk of detection."

By the aid of their belts Barcroft and Kirkwood succeeded in a.s.sisting the wounded officer to gain the lowermost branch. Thence it was a comparatively simple matter to climb another thirty feet.

Here two huge limbs gave a tolerably secure perch, wide enough to hide the fugitives from the sight of any persons pa.s.sing underneath, and yet able to afford an outlook over a wide expanse of open country.

"Now let's look at that injured arm," said Barcroft, producing his "first aid" outfit. "Slip his coat off, Bobby; we don't want to cut that away. H'm! clean hole, by Jove! Iodine and gauze, old man.

That's capital. I've morphia tablets here; if you feel in much pain I'll give you half a one and no more. Can't afford to have your brain dulled by morphia at this stage of the proceedings, John.',

"That's easier," said Fuller with a sigh of relief. "Now if you'll be so good as to unlace my boot I'll ma.s.sage this low-down ankle."

"You'll keep still," ordered Barcroft firmly, "We'll do the rubbing business--if only to keep our blood circulating."

"Did you save your map?" inquired Fuller.

"I burnt mine."

"Yes, I have mine," replied the flight-sub. "I make it about sixty miles from the Dutch frontier--not much use making a shot for the coast, I take it?"

"Phew! Sixty miles--I did that distance once on a walking tour. For pleasure, mark you," said Fuller. "Plenty to eat, a decent show to put up at every night, and quite fine weather and I had galled heels by the end of the second day."

"If we could sneak a captive balloon like you did at Sylt," remarked the A.P. "That would be top-hole."

"A bit of sheer good luck," said Fuller reminiscently. "That sort of dose isn't often repeated. Tressidar and I broke into a house and collared suits of mufti. That won't do here, though. We were on Danish soil then; now we are in occupied Belgium. Caught and we are shot as spies, while the unfortunate civilians to whom the clothes belong would be strung up for a.s.sisting us to escape, whether they did it knowingly or otherwise. Time for more amateur burglar work when we're on Dutch soil. That's my opinion. You see, if we cross the frontier in uniform we'll be interned. I remember----"

"Look!" e.j.a.c.u.l.a.t.ed the A.P., pointing in the direction of the farmhouse.

Making their way across the fields were about a hundred people, men and women, herded together in rough military formation and escorted by grey-coated German infantry. The civilians were on their way to forced labour in the fields. Woe betide the luckless Belgian, male or female, who showed the faintest resentment, or lagged behind.

Blows and kicks were administered with impartial severity by the brutal guards, while some did not hesitate to prod the helpless human cattle with the b.u.t.t-ends of their rifles.

"And yet there are worms in England who cry out about the dilution of labour and the encroachment of the rights of the working man,"

remarked Barcroft. "This is the sort of rights they'd get if the Huns once occupied even a portion of the Homeland."

"Poor bounders!" exclaimed the A.P. as he fondled the holster of his revolver. "I'd like to put a shot through that red-faced swine's head."

"You'd only make it worse for us and for them," said Fuller.

"True," a.s.sented Kirkwood, "but a fellow cannot disguise his feelings in such circ.u.mstances. One thing seems certain: the Boches haven't got wind of our presence."

"Don't know so much about that," said Billy. "Unless I'm much mistaken there's a patrol coming this way--and dogs, too, by Jove!"

In less than ten minutes (it had taken the trio an hour to cover the same distance) the patrol gained the field in which the Belgians were literally slaving. Apparently the crowd of workers disturbed the trail, for the bloodhounds, three ma.s.sive-limbed, heavy-jowled creatures, no longer kept their noses close to the ground and followed the fugitives' track without the slightest deviation.

Instead they wandered round in circles, growling rather than baying, and showing every indication of having lost the scent.

Followed a heated controversy between the Huns with the dogs and the Germans guarding the field labourers, until the latter, ordering their charges to a.s.semble, marched them into the field next adjoining and nearer to the ca.n.a.l. Four Belgians, however, remained.

These, after what was evidently a homily as to their behaviour, followed the patrol with the bloodhounds.

The scent once lost took some time to pick up again, but eventually one of the animals stopped at the foot of the tree in which the fugitives were hiding and set up a succession of low, deep cries.

The other dogs, apparently on a different trail, disappeared in the wood, their keepers having all their work cut out to hold them in leash.

"One at least of the English swine is up this tree, Max," said a corporal, addressing one of the two privates with him. "That is certain. The others have gone elsewhere. I wonder that they had the sense to separate."

"We'll make sure of this one," said Max grimly.

"Ach! That is so," agreed the corporal. "Here, Karl, you speak this outlandish language. Tell this fellow to climb and see if the Englishman is there."

Turning to the Belgian who had been compelled to remain with them, Karl spoke to him in Flemish. Being ignorant of the Walloon language Barcroft was unable to understand his reply.

"The fool says he is hungry and has not enough strength to climb,"

said Karl, translating for the primary benefit of the corporal and for the secondary information of Billy Barcroft.

"Tell him," replied the Hun, "that he must go--and be quick about it. If he succeeds in finding the Englishman, then I will inform the commandant and see that the fellow gets a double ration to-night.

That ought to satisfy his hunger."

Lying at full length upon the st.u.r.dy branches the three airmen could distinctly hear the rasping of the Belgian's boots against the bark and the short sharp gasps that betokened a man obviously out of condition.

The A.P. glanced at Barcroft and pointed to his revolver. The look indicated clearly enough what he meant. There were but three Germans. There were also three determined Britons all armed with revolvers. It would be an easy matter to settle the hash of the Huns and trust to flight before the rest of the patrol, alarmed by the shots, could arrive upon the scene.

But the flight-sub shook his head. The risk was too great. Reprisals would automatically follow upon the luckless peasants, who were bound to be regarded as accomplices in the attack upon the three soldiers.

Presently a pair of hands gripped the rough bark of the bough on which Barcroft was lying--long, lean, gnarled fingers almost claw-like in appearance. The next instant the Belgian's head and shoulders appeared above the rounded edge of the bough.

For a brief second Billy's eyes met those of the climber. The fugitives were discovered.

CHAPTER XXVIII

TRACKED

AT the sight of the lean, cadaverous features of the Belgian Barcroft had to exercise a tremendous lot of restraint to control his desire to utter some sort of exclamation. He had no wish to harm the fellow, who, as he knew, was acting under compulsion, with overt bribery thrown in. In fact he felt sorry for the man, whose pathetic eyes and drawn features portrayed both hunger and misery.

Yet in an instant the climber turned his face aside and resolutely hauled himself upon the branch on which Billy was lying. He was now in full view of the other officers. Fortunately neither of them spoke nor moved, yet the mental tension was acute.

Standing upright upon the bough and carefully preserving his balance the Belgian outstretched his arm to grasp the branch above.

"The bounder doesn't want to take unnecessary chances," thought Barcroft. "He wouldn't shout while he was only holding on by his fingers. Now he's able to get a firm grip in case he thinks we'll heave him out of it."

But no. The flight-sub was totally wrong in his surmise. The man, deliberately ignoring the presence of the three fugitives, climbed still higher, until he gained the topmost branch capable of supporting his weight.

Then, having leisurely scanned the surrounding tree-tops, he shouted something to the Germans standing at the foot of the British officers' hiding-place.

For a moment Barcroft and his companions were again plunged into the throes of suspense. "The pig says that there are no signs of the Englishmen," interpreted Karl.