Hashknife Hartlely and his partner, two footloose cowpokes with a reputation for getting things done, are hired to look into the matter of disappearing cattle at the Circle Cross outfit.
John Lantigua, Andrew Welsh-Huggins, Dorothy C. Quick, John W. Campbell, Jr., Stephen Marlowe, Edmond Hamilton, Malcolm Jameson, W.C. Tuttle & Nelson S. Bond
H. Bedford-Jones, W.C. Tuttle, Murray Leinster, Raymond S. Spears, Ray Cummings, Roy Norton, Frederick C. Davis, Andrew A. Caffrey, Alma and Paul Ellerbe & Richard Howells Watkins
Fred Saberhagen, Eve Fisher, Sarah R. Shaber, Mel Gilden, Hal Charles, Lester del Rey, Henry Kuttner, W.C. Tuttle, Malcolm Jameson & Christopher B. Booth
Laird Long, John M. Floyd, Nisi Shawl, Michael Ehart, Lester del Rey, Saul Golubcow, John W. Campbell, Jr., W.C. Tuttle, Otis Adelbert Kline & Hope Mirrlees
Bruce D. Arthurs, Phyllis Ann Karr, Nancy Novick, Hal Charles, Murray Leinster, George O Smith, William P. McGivern, W.C. Tuttle, Nicholas Carter & Charles Dye
