After leaving the lake the river San Juan bends south, and then north again. The scouts had taken the direct route to the fort across the land, but the young officer's theory was that, if the Nicaraguans meant to fight, they would place an ambush in the dense jungle along the river, and from this place of concealment harass the flotilla before it got within gunshot of the fort. This ambuscade could easily fall back upon the fort if directly attacked and defeated. This, the young man argued was what he himself would have done had he been in command of the Nicaraguan forces, so it naturally occurred to him to discover whether the same idea had suggested itself to the commandant at San Carlos.
Expecting every moment to come upon this ambuscade, the boy proceeded, pistol in hand, with the utmost care, crouching under the luxuriant tropical foliage, tunnelling his way, as one might say, along the dark alleys of vegetation, roofed in by the broad leaves overhead. Through cross-alleys he caught glimpses now and then of the broad river, of which he was desirous to keep within touch. Stealthily crossing one of these riverward alleys the young fellow came upon his ambuscade, and was struck motionless with amazement at the form it took. Silhouetted against the shining water beyond was a young girl. She knelt at the very verge of the low, crumbling cliff above the water; her left hand, outspread, was on the ground, her right rested against the rough trunk of a palm-tree, and counter-balanced the weight of her body, which leaned far forward over the brink. Her face was turned sideways towards him, and her lustrous eyes peered intently down the river at the British flotilla stranded along the river's bank. So intent was her gaze, so confident was she that she was alone, that the leopard-like approach of her enemy gave her no hint of attack. Her perfect profile being towards him, he saw her cherry-red lips move silently as if she were counting the boats and impressing their number upon her memory.
A woman in appearance, she was at this date but sixteen years old, and the breathless young man who stood like a statue regarding her thought he had never seen a vision of such entrancing beauty, and, as I have before intimated, he was a judge of feminine loveliness. Pulling himself together, and drawing a deep but silent breath, he went forward with soft tread, and the next instant there was a grip of steel on the wrist of the young girl that rested on the earth. With a cry of dismay she sprang to her feet and confronted her assailant, nearly toppling over the brink as she did so; but he grasped her firmly, and drew her a step or two up the arcade. As he held her left wrist there was in the air the flash of a stiletto, and the naval officer's distinguished career would have ended on that spot had he not been a little quicker than his fair opponent. His disengaged hand gripped the descending wrist and held her powerless.
"Ruffian!" she hissed, in Spanish.
The young man had a workable knowledge of the language, and he thanked his stars now that it was so. He smiled at her futile struggles to free herself, then said:—
"When they gave me my commission, I had no hope that I should meet so charming an enemy. Drop the knife, señorita, and I will release your hand."
The girl did not comply at first. She tried to wrench herself free, pulling this way and that with more strength than might have been expected from one so slight. But finding herself helpless in those rigid bonds, she slowly relaxed the fingers of her right hand, and let the dagger drop point downward into the loose soil, where it stood and quivered.
"Now let me go," she said, panting. "You promised."
The young man relinquished his hold, and the girl, with the quick movement of a humming-bird, dived into the foliage, and would have disappeared, had he not with equal celerity intercepted her, again imprisoning her wrist.
"You liar!" she cried, her magnificent eyes ablaze with anger. "Faithless minion of a faithless race, you promised to let me go."
"And I kept my promise," said the young man, still with a smile. "I said I would release your hand, and I did so; but as for yourself, that is a different matter. You see, señorita, to speak plainly, you are a spy. I have caught you almost within our lines, counting our boats, and, perhaps, our men. There is war between our countries, and I arrest you as a spy."
"A brave country, yours," she cried, "to war upon women!"
"Well," said the young man, with a laugh, "what are we to do? The men won't stay and fight us."
She gave him a dark, indignant glance at this, which but heightened her swarthy beauty.
"And what are you," she said, "but a spy?"
"Not yet," he replied. "If you had found me peering at the fort, then, perhaps, I should be compelled to plead guilty. But as it is, you are the only spy here at present, señorita. Do you know what the fate of a spy is?"
The girl stood there for a few moments, her face downcast, the living gyves still encircling her wrists. When she looked up it was with a smile so radiant that the young man gasped for breath, and his heart beat faster than ever it had done in warfare.
"But you will not give me up?" she murmured, softly.
"Then would I be in truth a faithless minion," cried the young man, fervently; "not, indeed, to my country, but to your fascinating sex, which I never adored so much as now."
"You mean that you would be faithless to your country, but not to me?"
"Well," said the young man, with some natural hesitation, "I shouldn't care to have to choose between my allegiance to one or the other. England can survive without warring upon women, as you have said; so I hope that if we talk the matter amicably over, we may find that my duty need not clash with my inclination."
"I am afraid that is impossible," she answered, quickly. "I hate your country."
"But not the individual members of it, I hope."
"I know nothing of its individual members, nor do I wish to, as you shall soon see, if you will but let go my wrist."
"Ah, señorita," exclaimed the young man, "you are using an argument now that will make me hold you forever."
"In that case," said the girl, "I shall change my argument, and give instead a promise. If you release me I shall not endeavour to escape—I may even be so bold as to expect your escort to the fort, where, if I understand you aright, you were but just now going."
"I accept your promise, and shall be delighted if you will accept my escort. Meanwhile, in the interest of our better acquaintance, can I persuade you to sit down, and allow me to cast myself at your feet?"
The girl, with a clear, mellow laugh, sat down, and the young man reclined in the position he had indicated, gazing up at her with intense admiration in his eyes.
"If this be war," he said to himself, "long may I remain a soldier." Infatuated as he certainly was, his natural alertness could not but notice that her glance wandered to the stiletto, the perpendicular shining blade of which looked like the crest of a glittering, dangerous serpent, whose body was hidden in the leaves. She had seated herself as close to the weapon as possible, and now, on one pretext or another, edged nearer and nearer to it. At last the young man laughed aloud, and, sweeping his foot round, knocked down the weapon, then indolently stretching out his arm, he took it.
"Señorita," he said, examining its keen edge, "will you give me this dagger as a memento of our meeting?"
"It is unlucky," she murmured, "to make presents of stilettos."
"I think," said the young man, glancing up at her with a smile on his lips, "it will be more lucky for me if I place it here in my belt than if I allow it to reach the possession of another."
"Do you intend to steal it, señor?"
"Oh, no. If you refuse to let me have it, I will give it back to you when our interview ends; but I should be glad to possess it, if you allow me to keep it."
"It is unlucky, as I have said; to make a present of it, but I will exchange. If you will give me one of your loaded pistols, you may have the stiletto."
"A