"That's what I meant about your responsibility,--responsibility to the public and responsibility to the individuals you may happen to work into your story."

Lyon nodded. He felt that there was something behind this not yet clear to him.

"You were fortunate in being on the spot. You must have been the first man there. I was close behind you, I think. I was not far behind you when you came down Hemlock Avenue."

Then suddenly Lyon understood. It was quite as though Lawrence had said, "I hope you will not consider it necessary to mention that a minute or two after the time of the murder you saw a woman running in terror from the spot and going into a house where I call." He had quite forgotten the running girl for the moment. Now the sudden bringing together of the two ideas staggered him.

"There are things that once said can never be unsaid," said Lawrence.

"Yes."

"That's why I am glad it has fallen into your hands to write it up instead of into the hands of some sensation monger who would not have the instinct of a gentleman about what to say and what to leave unsaid. By the way, it was you who identified the man as Fullerton, wasn't it?"

"Yes," said Lyon slowly. He recalled the fixed look that Lawrence had bent upon the body in silence. It was impossible that he had not recognized his enemy in the dead man. Why had he held back the natural impulse to speak his name?

"I'll look for your report with interest. And, by the way, don't you lunch at the Tillamook Club? Look me up some day. I'm usually there between one and two. Glad to have seen you. Good night."

Lyon found that "story" more difficult to write up than he had anticipated.