So swift, silent and furtive were his movements like those of a trained bloodhound picking out a scent, that I could not but think what a terrible cr… - Arthur Conan Doyle

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So swift, silent and furtive were his movements like those of a trained bloodhound picking out a scent, that I could not but think what a terrible criminal he would have made had he turned his energy and sagacity against the law instead of exerting them in its defense.