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"But it is profoundly true. Singularity is almost invariably a

clue. The more featureless and commonplace a crime is, the more

difficult it is to bring it home. In this case, however, they

have established a very serious case against the son of the

murdered man."

"It is a murder, then?"

"Well, it is conjectured to be so. I shall take nothing for

granted until I have the opportunity of looking personally into

it. I will explain the state of things to you, as far as I have

been able to understand it, in a very few words.