The Shadow returned in 2015 in the authorized novel "The Sinister Shadow", an entry in the "Wild Adventures of Doc Savage" series from Altus Press. The novel, written by Will Murray, used unpublished material originally written in 1932 by Doc Savage originator Lester Dent and published under the pen name Kenneth Robeson. Set in 1933, the story details the conflict between the two pulp magazine icons during a crime wave caused by a murderous kidnapping-extortion ring led by the mysterious criminal mastermind known as the Funeral Director.