The old man continued: "Was your own father present before your grandfather's death, and did he not disclose to him a very important secret?"

"My grandfather died of a malignant fever which robbed him of his senses. My father, then a boy, was sent for, but when he arrived he found his father dead."

"One more question I must ask—and I know you will forgive me. Did your father receive a big fortune?"

"My father," continued Mr. Vollmar, "returned to this city and this house a poor man. He married a woman as poor as himself, but with industry they at last became rich."

"Do you know," continued the old man, "you look just like your grandfather? He, too, was about the same age as you are now, and I feel, as I talk to you, as if he were here. But listen to my story and perhaps it may be of value to you.

"Shortly before this city was plundered I worked as a mason. One day my employer, a very honest man, received word to call at once upon a gentleman who wished him to do some work which was to be kept a secret. As my employer was sick, he sent me in his place, vouching for my honor and trustworthiness.

"I entered the house and was ushered into a room where your grandfather (for I have no doubts but that it was he) was seated. He started, and was indeed surprised that my employer should have sent as a substitute such a young man as I was then. After reading my recommendation, he ordered the servants to light two candles and set them on the table over which this picture hung. He made me vow never to tell the secret which he would entrust to me, except in time of need, and then only to one of his descendants. He spoke the oath and I repeated it, word for word, looking up at this picture all the time.

"Then he led me into the cellar, down another stairway made of stone into a lower cellar, where he opened a strongly bolted door. I gazed into a hollow in the wall, where many chests were standing. 'These boxes hold all my valuables, which I wish to save,' said he. 'Now, I want you to cement this door so cleverly that no one will discover its whereabouts.'

"As all the tools were lying there in readiness, and the mortar had been previously prepared, I started to work at once. It cost a little labor and much pains to do the work well and to hide the door, but I succeeded, and received a gold piece for my labor.

"The gentleman laid his finger on my lips, and said: 'Remember your vow.'