The following manuscript was found among the effects of the late Leonidas Parker, in relation to one Gregory Summerfield, or, as he was called at the time those singular events first attracted public notice, "The Man with a Secret." Parker was an eminent lawyer, a man of firm will, fond of dabbling in the occult sciences, but never allowing this tendency to interfere with the earnest practice of his profession. This astounding narrative is prefaced by the annexed clipping from the Auburn Messenger of November 1, 1870: A few days since, we called public attention to the singular conduct of James G. Wilkins, justice of the peace for the "Cape Horn" district, in this county, in discharging without trial a man named Parker, who was, as we still think, seriously implicated in the mysterious death of an old man named Summerfield, who, our readers will probably remember, met so tragical an end on the line of the Central Pacific Railroad, in the month of October last. We have now to record another bold outrage on public justice, in connection with the same affair. The grand jury of Placer County has just adjourned, without finding any bill against the person named above. Not only did they refuse to find a true bill, or to make any presentment, but they went one step further toward the exoneration of the offender; they specially ignored the indictment which our district attorney deemed it his duty to present. The main facts in relation to the arrest and subsequent discharge of Parker may be summed up in few words: