Nick Carter Stories No. 131, March 13, 1915: A fatal message; or, Nick Carter's…
Nick Carter Stories No. 133, March 27, 1915: Won by Magic; or, Nick Carter's My…
Nick Carter Stories No. 136, April 17, 1915: The Man They Held Back
Nick Carter Stories No. 139, May 8, 1915: The Pressing Peril
Nick Carter Stories No. 137, April 24, 1915: The Seal of Gijon; Or, Nick Carter…