The excitement and suspense of the major and Amy can be imagined when news of the accident reached them. Their gratitude and relief were intense when Helen appeared next morning, with the faithful Hoffman still at his post, though no longer able to disguise the fact that he was suffering from his wound.  
When the story had been told, Karl was put under the surgeon's care, and all remained at Heidelberg for several days to rest and recover.
 
On the afternoon of the last day the major and young ladies drove off to the castle for a farewell view. Helen began to sketch the great stone lion's head above the grand terrace, the major smoked and chatted with a party of English artists whom he had met, and Amy, with a little lad for a guide, explored the old castle to her heart's content.
 
The sun set, and twilight began to fall when Helen put up her pencils, and the major set off to find Amy, who had been appearing and disappearing in every nook and cranny of the half-ruined castle.
 
Nowhere could he find her, and no voice answered when he called. The other visitors were gone, and the place seemed deserted, except by themselves and the old man who showed the ruins.
 
Becoming alarmed lest the girl had fallen somewhere, or lost her way among the vaults where the famous Tun lies, the major called out old Hans with his lantern, and searched high and low.
 
Amy's hat, full of flowers and ferns, was found in the Lady's Walk, as the little terrace is called, but no other trace appeared, and Helen hurried to and fro in great distress, fearing all manner of dangers.
 
Meanwhile Amy, having explored every other part of the castle, went to take another look at the Tun, the dwarf, and the vaults.
 
Now little Anderl, her guide, had a great fear of ghosts, and legions were said to haunt the ruins after nightfall, so when Amy rambled on deeper and deeper into the gloom the boy's courage ebbed away with every step; yet he was ashamed to own his fear, seeing that she had none.
 
Amy wanted to see a certain cell, where a nun was said to have pined to death because she would not listen to the Margraf's love. The legend pleased the romantic girl, and forgetful of waning daylight, gathering damps, and Anderl's reluctant service, she ran on, up steps and down, delighted with little arched doors, rusty chains on the walls, glimpses of sky through shattered roofs, and all manner of mysterious nooks and corners. Coming at last to a narrow cell, with a stone table, and heavy bolts on the old door, she felt sure this was poor Elfrida's prison, and called Anderl to come on with his candle, for the boy had lighted one, for his own comfort rather than hers. Her call was unanswered, and glancing back, she saw the candle placed on the ground, but no Anderl.
 
"Little coward, he has run away," she said, laughing; and having satisfied her curiosity, turned to retrace her steps,—no easy task to one ignorant of the way, for vault after vault opened on both sides, and no path was discernible. In vain she tried to recall some landmark, the gloom had deepened and nothing was clear. On she hurried, but found no opening, and really frightened, stopped at last, calling the boy in a voice that woke a hundred echoes. But Anderl had fled home, thinking the lady would find her way back, and preferring to lose his kreutzers to seeing a ghost.
 
Poor Amy's bewilderment and alarm increased with every moment's delay, and hoping to come out somewhere, she ran on till a misstep jostled the candle from her hand and extinguished it.
 
Left in the dark, her courage deserted her, and she screamed desperately, like a lost child, and was fast getting into a state of frantic terror, when the sound of an approaching step reassured her.
 
Holding her breath, she heard a quick tread drawing nearer, as if guided by her cries, and, straining her eyes, she caught the outline of a man's figure in the gloom.
 
A sensation of intense joy rushed over her, and she was about to spring forward, when she remembered that as she could speak no German how could she explain her plight to the stranger, if he understood neither French nor English?
 
Fear took possession of her at the thought of meeting some rough peasant, or some rollicking student, to whom she could make no intelligible appeal or explanation.
 
Crouching close against the wall, she stood mute till the figure was very near. She was in the shadow of an angle, and the man paused, as if looking for the person who called for help.
 
"Who is lost here?" said a clear voice, in German.
 
Amy shrunk closer to the wall, fearing to speak, for the voice was that of a young man, and a low laugh followed the words, as if the speaker found the situation amusing.
 
"Mortal, ghost or devil, I'll find it," exclaimed the voice, and stepping forward, a hand groped for and found her.
 
"Lottchen, is it thou? Little rogue, thou shalt pay dearly for leading me such a chase."
 
As he spoke he drew the girl toward him, but with a faint cry, a vain effort to escape, Amy's terror reached its climax, and spent with fatigue and excitement, she lost consciousness.
 
"Who the deuce is it, then? Lottchen never faints on a frolic. Some poor little girl lost in earnest. I must get her out of this gloomy place at once, and find her party afterward."
 
Lifting the slight figure in his arms, the young man hurried on, and soon came out through a shattered gateway into the shrubbery which surrounds the base of the castle.
 
Laying her on the grass, he gently chafed her hands, eying the pale, pretty face meantime with the utmost solicitude.
 
At his first glimpse of it he had started, smiled and made a gesture of pleasure and surprise, then gave himself entirely to the task of recovering the poor girl whom he had frightened out of her senses.
 
Very soon she looked up with dizzy eyes, and clasping her hands imploringly, cried, in English, like a bewildered child,—
 
"I am lost! Oh, take me to my uncle."
 
"I will, the moment you can walk. Upon my soul, I meant to help you when I followed; but as you did not answer, I fancied it was Lottchen, the keeper's little girl. Pardon the fright I've caused you, and let me take you to your friends."
 
The true English accent of the words, and the hearty tone of sincerity in the apology, reassured Amy at once, and, rising, she said, with a faint smile and a petulant tone,—
 
"I was very silly, but my guide ran away, my candle went out, I lost the path, and can speak no German; so I was afraid to answer you at first; and then I lost my wits altogether, for it's rather startling to be clutched in the dark, sir."
 
"Indeed it is. I was very thoughtless, but now let me atone for it. Where is your uncle, Miss Erskine?" asked the stranger, with respectful earnestness.
 
"You know my name?" cried Amy in her impulsive way.
 
"I have that happiness," was the answer, with a smile.
 
"But I don't know you, sir;" and she peered at him, trying to see his face in the darkness, for the copse was thick, and twilight had come on rapidly.
 
"Not yet; I live in hope. Shall we go? Your uncle will be uneasy."
 
"Where are we?" asked Amy, glad to move on, for the interview was becoming too personal even for her, and the stranger's manner fluttered her, though she enjoyed the romance of the adventure immensely.
 
"We are in the park which surrounds the castle. You were near the entrance to it from the vaults when you fainted."
 
"I wish I had kept on a little longer, and not disgraced myself by such a panic."
 
"Nay, that is a cruel wish, for then I should have lost the happiness of helping you."
 
They had been walking side by side, but were forced to pause on reaching a broken flight of steps, for Amy could not see the way before her.
 
"Let me lead you; it is steep and dark, but better than going a long way round through the dew," he said, offering his hand............