The Image in the Mirror
"The Image in the Mirror" is short story by Dorothy L . Sayers , featuring Lord Peter Wimsey and published as the first story in "Hangman's Holiday" in 1933 . 
<triplet> Lord Peter Wimsey <subj> Dorothy L. Sayers <obj> creator <subj> Hangman's Holiday <obj> present in work <triplet> Hangman's Holiday <subj> Dorothy L. Sayers <obj> author