Graumaun sat back on the cot, his head resting against the wall.  His eyes had closed while Muller was speaking, but his quieter breathing showed that he was mastering the physical attack which had so shaken him at the first glimpse of hope.  He opened his eyes now and looked at Muller steadily for a moment.  Then he said:  “Yes, I will tell you:  my life and my work have taught me to gauge men.  I will tell you everything I know about this sad affair.  I will tell you the absolute truth, and I think you will believe me.”

“I will believe you,” said Muller simply.

“You know the details of the murder, of course, and why I was arrested?”

“You were arrested because you were the last person seen in the company of the murdered man?”

“Exactly.  Then I may go back and tell you something of my connection with John Siders?”

“It would be the very best thing to do.”

“I live in Grunau, as you doubtless know, and am the engineering expert of large machine works there.  My father before me held an important position in the factory, and my family have always lived in Grunau.  I have traveled a great deal myself.  I am forty-five years old, a childless widower, and live with my old aunt, Miss Babette Graumann, and my ward, Miss Eleonora Roemer, a young lady of twenty-two.”  Muller looked up with a slight start of surprise, but did not say anything.  Graumann continued: 

“A little over a year ago, John Siders, who signed himself as coming from Chicago, bought a piece of property in our town and came to live there.  I made his acquaintance in the cafe and he seemed to take a fancy to me.  I also had spent several years in Chicago, and we naturally came to speak of the place.  We discovered that we had several mutual acquaintances there, and enjoyed talking over the old times.  Otherwise I did not take particularly to the man, and as I came to know him better I noticed that he never mentioned that part of his life which lay back of the years in Chicago.  I asked a casual question once or twice as to his home and family, but he evaded me every time, and would not give a direct answer.  He was evidently a German by birth and education, a man with university training, and one who knew life thoroughly.  He had delightful manners, and when he could forget his shyness for a while, he could be very agreeable.  The ladies of my family came to like him, and encouraged him to call frequently.  Then the thing happened that I should not have believed possible.  My ward, Miss Roemer, a quiet, reserved girl, fell in love with this man about whom none of us knew anything, a man with a past of which he did not care to speak.