Isabel Ostrander,
The Twenty-Six Clues — Chapter 23
(1919)
“ The stillness was broken now by a wordless stir which ran around the semicircle as McCarty took from his pocket the folded blank sheet and another covered with laboriously scrawled writing. The first he passed to Inspector Druet, while from the second he read: "I know who killed Madame Jarvis. He knows that I know and he will kill me also. I heard them there in the museum and the voice of her murderer is the voice of him who calls himself Eric Vivaseur!" ”
