Gone, but Not Forgotten — Phillip Margolin

ONE BY ONE THE WOMEN VANISHED. THE ONLY CLUE IS A SINGLE BLACK ROSE. LEFT ON A PILLOW WITH THIS NOTE...

GONE, BUT NOT--FORGOTTEN
THE SIGNATURE OF THE SMARTEST KILLER OF THEM ALL

The first time Russ went into the bedroom, he missed the rose and the note. His back was to the bed when he stripped off his clothes and hung them in the closet. When fifteen more minutes passed without Vicky, Russ went back into the bedroom to phone her best friend. That was when he saw the note on the pillow on the immaculately made bed. There was a black rose lying across the plain, white paper. Written in a careful hand were the words "Gone, But Not Forgotten."