THE DIAMOND MAKER By Arthur B. Reeve “I’ve called, Professor Kennedy, to see if we…

THE DETECTAPHONE By Arthur B. Reeve Far after midnight though it had been when we…

THE DEMON ENGINE By Arthur B. Reeve “Perpetual motion sounds foolish, I’ll admit. But, Professor…

THE BLOOD CRYSTALS By Arthur B. Reeve Much as we had accomplished, we had not…

THE DEBACLE OF DORGAN By Arthur B. Reeve Sunday morning came and with it the…

THE DEATH-DREAM By Arthur B. Reeve “It’s the most perplexing case I’ve been up against,…

THE CROOK DETECTIVE By Arthur B. Reeve We were interrupted by the arrival of Doyle…

THE CONVICTION By Arthur B. Reeve Meanwhile, the organization was using every effort to get…

THE CONFLICTING CLUES THE ORDEAL BEAN It was early the following morning that Doyle burst…

THE CONFESSION By Arthur B. Reeve Little happened during the rest of the day, which…