Behind that sheet of steel were special books that The Shadow guarded beyond all else.

They were his secret archives — amazing volumes from which his annals were prepared. The presence of The Shadow manifested itself when a long black arm reached out as though from space. A white hand opened the drawer of a filing cabinet. Another hand came into view. Upon one tapering finger shone a strange, mystic gem — the girasol, or fire opal, which was The Shadow's only jewel. The girasol glimmered with deep crimson that sparkled and changed to a rich purple as the hand of The Shadow stopped upon a file that bore the letter "A." The hands disappeared, carrying a paper into the darkness. They reappeared by the table.

Here the unseen eyes of The Shadow began a study of important data in the case of Daniel Antrim. It was not the first time that this subject had gained The Shadow's interest. His delving into the affairs of the defunct lawyer had been a laborious process.

The morning after the affray at Antrim's, Harry Vincent had awakened to find himself in his room at the Metrolite Hotel. He had sent a complete report of the event to The Shadow. It had begun with Harry's observation of an unknown man creeping down the hall. It had ended with the blow that Harry had received from Solly.

This had given The Shadow an inkling of the affair. Yet, until now, the man in black had not possessed the fund of knowledge necessary to draw conclusions in the case.

The reports on Daniel Antrim had been assembled tediously by The Shadow's agents. All data had reached headquarters, in this room.

Back at the filing cabinet, The Shadow brought out another paper from File F. This, when placed upon the table, showed the name of Hawk Forster. Memoranda concerning such a small-fry gangster had not been acquired easily. Hawk Forster had thrived as an underling with many mobs. A low laugh came through the gloom above the light. It echoed with a hollow tone from the walls and ceiling. Reverberating, it seemed to die away at the floor, as though absorbed by the thick blackness there.

The Shadow's hands were out of sight. Then they reappeared at the metal panel which fronted the case of archives.

Here the hands moved back and forth, lightly touching portions of the panel. Their motions were like those of a mesmerist, and with their action the panel responded in mysterious fashion. The metal barrier melted downward, into the floor itself.

Small lights within the uncovered section of the bookcase showed a row of black-bound books. From each shone a date, inscribed in gold numerals.