F Madame Sara had one prerogative more than another it was that of taking people unawares. When least expected she would spring a mine at your feet, engulf you in a most horrible danger, stab you in the dark, or injure you through your best friend; in short, this dangerous woman was likely to become the terror of London if steps were not soon taken to place her in such confinement that her genius could no longer assert itself.
Months went by after my last adventure. Once again my fears slumbered. Madame Sara's was not the first name that I thought of when I awoke in the morning, nor the last to visit my dreams at night. Absorbed in my profession, I had little time to waste upon her. After all, I made up my mind, she might have left London; she might have carried her machinations, her cruelties, and her genius elsewhere.
That such was not the case this story quickly shows.
The matter which brought Madame Sara once again to the fore began in the following way.
On the 17th of July, 1900, I received a letter; it ran as follows:—
I replied to this letter by telegram:—
"Will be with you at three to-morrow."
Helen Sherwood was an old friend of mine; that is, I had known her since she was a child. She was now about twenty-three years of age, and was engaged to a certain Godfrey Despard, one of the best fellows I ever met. Despard was employed in a merchant's office in Shanghai, and the chance of immediate marriage was small. Nevertheless, the young people were determined to be true to each other and to wait that turn in the tide which comes to most people who watch for it.
Helen's life had been a sad one. Her mother, a Portuguese lady of good family, had died at her birth; her father, Henry Sherwood, had gone to Lisbon in 1860 as one of the Under-Secretaries to the Embassy and never cared to return to England. After the death of his wife he had lived as an eccentric recluse. When Helen was three years old he had sent her home, and she had been brought up by a maiden aunt of her father's, who had never understood the impulsive, eager girl, and had treated her with a rare want of sympathy. This woman had died when her young charge was sixteen years of age. She had left no money behind her, and, as her father declined to devote one penny to his daughter's maintenance, Helen had to face the world before her education was finished. But her character was full of spirit and determination. She stayed on at school as pupil teacher, and afterwards supported herself by her attainments. She was a good linguist, a clever musician, and had one of the most charming voices I ever heard in an amateur. When this story opens she was earning a comfortable independence, and was even saving a little money for that distant date when she would marry the man she loved.
Meanwhile Sherwood's career was an extraordinary one. He had an extreme stroke of fortune in drawing the first prize of the Grand Christmas State Lottery in Lisbon, amounting to one hundred and fifty million reis, representing in English money thirty thousand pounds. With this sum he bought an old castle in the Estrella Mountains, and, accompanied by his wife's brother, a certain Petro de Castro, went there to live. He was hated by his fellow-men and, with the exception of De Castro, he had no friends. The old castle was said to be of extraordinary beauty, and was known as Castello Mondego. It was situated some twenty miles beyond the old Portuguese town of Coimbra. The historical accounts of the place were full of interest, and its situation was marvellously romantic, being built on the heights above the Mondego River. The castle dated from the twelfth century, and had seen brave and violent deeds. It was supposed to be haunted by an old monk who was said to have been murdered there, but within living memory no one had seen him. At least, so Helen had informed me.
Punctually at three o'clock on the following day I found myself at West Terrace, and was shown into my young friend's pretty little sitting-room.
"How kind of you to come, Mr. Druce!" she said. "May I introduce you to my uncle, Senhor de Castro?"
The Senhor, a fine-looking man, who spoke English remarkably well, bowed, gave a gracious smile, and immediately entered into conversation. His face had strong features; his beard was iron-grey, so also were his hair and moustache. He was slightly bald about the temples. I imagined him to be a man about forty-five years of age.
"Now," said Helen, after we had talked to each other for a few minutes, "perhaps, Uncle Petro, you will explain to Mr. Druce what has happened."
As she spoke I noticed that her face was very pale and that her lips slightly trembled.