"And a woman cried!" Robinson said, bewildered. "All this sounds like a ghost story."

"You've more sense than I thought," Doctor Groom said dryly. "I never could get Howells to see it that way."

"What are you driving at?" Robinson snapped.

"These crimes," the doctor answered, "have all the elements of a ghostly impulse."

Robinson's laugh was a little uncomfortable.

"The Cedars is a nice place for spooks, but it won't do. I'll be frank. Howells telephoned me. He had found plenty of evidence of human interference. It's evident in both cases that the murderer came back and disturbed the bodies for some special purpose. I don't know what it was the first time, but it's simple to understand the last. The murderer came for evidence Howells had on his person."

Bobby couldn't meet the sharp, puffy eyes. He alone was capable of testifying that the evidence had been removed as if to secrete it from his unlawful hand. Yet if he spoke he would prove the district attorney's point. He would condemn himself.

"Curious," Graham said slowly, "that the murderer didn't take the evidence when he killed his man."

"I don't know about that," Robinson said, "but I know Howells had evidence on his person. You through, Coroner? Then we'll have a look, although it's little use."

He walked to the bed and searched Howells's pockets.