A sequel, ''Empire of Doom'', was published in 2016 and takes place seven years later in 1940. The Shadow's old enemy, Shiwan Khan, attacks his hated adversary. Doc Savage joins forces with The Shadow to vanquish Khan in a Doc Savage novel written by Murray, from a concept by Dent.
In 2020, James Patterson Entertainment and Condé Nast Entertainment announced a new series written by [[James Patterson]] and Brian Sitts. The arrangement also includes potential screen adaptionsadaptations of these novels.<ref>{{Cite web|url=https://www.forbes.com/sites/robsalkowitz/2020/07/16/james-patterson-reviving-30s-era-crimefighter-the-shadow-for-new-novels-films/|title=James Patterson Reviving 30s-Era Crimefighter 'The Shadow' For New Novels, Films|first=Rob|last=Salkowitz|website=Forbes}}</ref><ref>{{Cite web|url=https://deadline.com/2020/07/james-patterson-conde-nast-reviving-crime-fighter-the-shadow-new-book-series-1202987269/|title=James Patterson, Condé Nast Reviving The Shadow In New Original Book Series|first1=Dade|last1=Hayes|date=July 16, 2020}}</ref> The first novel, ''The Shadow'', released in 2021, serves as a sequel-update with some science-fiction elements, bringing Lamont Cranston from 1937 into 2087 to battle Shiwan Khan in a futuristic New York. The second Patterson-Sitts Shadow novel, ''Circle of Death'', was published in 2023.
