Request Doctor George Fredericks to tell: (1) Why he claims to have warned Harshaw of a serious illness that did not exist. (2) Why he has said nothing about his knowledge of the deadly poisons that killed Louis Glenn. (3) What he did with the check he received from Thomas Sutton, in return for two professional visits. (4) What he did the night he was a guest of the Falcon Society, at James Throckmorton’s home. (5) How much he expected to receive from Roger Biscayne in return for certain services.

These statements struck home as Cardona read them. The keen-eyed detective did not miss a single word.

His mind was now grasping the vital details of a vile plot — the schemings of two men who had laid their crimes upon the first man whom they conspired to murder!

Cardona looked at Biscayne, who was working at a spot in the far corner of the room. He looked at the list again.

Before his eyes, the writing was disappearing. A moment later, the paper was a blank! But those statements were still complete in Joe Cardona’s mind!

The detective slipped his hand into his coat pocket and gripped the butt of a revolver.

At that moment, Biscayne yanked at the side of a bench and pulled open a concealed drawer. He drew forth a small, round object, that appeared to be a miniature bomb.

“Look at this!” he exclaimed, turning toward Cardona. “Just by a chance, I discovered it. A small edition of the bomb that was sent to Arthur Wilhelm.

“By the way, did you find papers in the drawer where you were looking?”

“Stand where you are,” said Cardona coldly.