Delighted amazement radiated from Dollie Meredith's face; she clapped her hands involuntarily as she would have applauded a stage incident. Detective Mallory started to say something, then thought better of it and glared at Cunningham instead.

"Now, Mr. Cunningham says that he shot the Burglar with this revolver." The Thinking Machine waved the weapon under Detective Mallory's nose. "This is the usual police weapon. Its calibre is thirty-eight. Mr. Herbert was shot with a thirty-two calibre. Here is the bullet." And he tossed it on the desk.


CHAPTER VI

Strange emotions all tangled up with turbulent, night-marish impressions scrambled through Dollie Meredith's pretty head in garish disorder. She didn't know whether to laugh or cry. Finally she compromised by blushing radiantly at the memory of certain lingering kisses she had bestowed upon—upon—Dick Herbert? No, it wasn't Dick Herbert. Oh, dear!

Detective Mallory pounced upon the bullet as a hound upon a hare, and turned and twisted it in his hands. Cunningham leaned over his shoulder, then drew a cartridge from the revolver and compared it, as to size, with the bullet. Hatch and Mr. Randolph, looking on, saw him shake his head. The ball was too small for the revolver.

The Supreme Intelligence turned suddenly, fiercely, upon Dollie and thrust an accusing finger into her startled face.

"Mr. Herbert confessed to you that he was with you in the automobile, didn't he?"

"Y-yes," she faltered.

"You know he was with you?"