
cover art by Ernest Chiriacka
better image than previously posted


first published in 1920 by Ward as The Daffodil Mystery. it was published the following year by Small Maynard in Boston with this title
cover art by Richard Lyon repurposed from G-Men Magazine, May 1938


1960 Gold Medal paperback original
cover art by Charles Binger
pseudonym of Robert Lee Martin
better image than previously posted

1961 Gold Medal paperback original
cover art by Darcy/Ernest Chiriacka?
better image than previously posted

1960 Popular Giant edition paperback original
cover art by Darcy (Ernest Chiriacka)