The Circular Study by Anna Katharine Green

"A blonde, you say, sir?"

"Yes, Sweetwater; not of the usual type, but one of those frail, ethereal creatures whom we find it so hard to associate with crime. He, on the contrary, according to Miss Butterworth's description (and her descriptions may be relied upon), is one of those gentlemanly athletes whose towering heads and powerful figures attract universal attention. Seen together, you would be apt to know them. But what reason have we for thinking they will be found together?"