1. : A search result points to Cory Doctorow’s novel, where “Young Marcus Yallow” is a teenager fighting a tyrannical government. This is a strong candidate for the original source material. 2. A Gladiator’s Apprentice : Simon Scarrow’s “Gladiator” series features a young Marcus who trains to become a gladiator. This is another established origin story. 3. A Young Centurion in Ancient Rome : George Manville Fenn’s historical novel centers on an 18-year-old Marcus who wants to be a soldier. 4. A Fandom Creation : A Fandom wiki details a story from the “Five Nights at Marcus” series, which is a fan-made horror game. This aligns with the “expanded ongoing” and “version 010” aspects of the query, suggesting a fan-driven, iterative project. 5. A Homicidal Robot : The same Fandom page describes a robot named “Marcus” from a “Project Genesis” storyline. 6. A Fanfiction Narrative : A snippet from an Archive of Our Own (AO3) download features a young Marcus and Esca, indicating the keyword could be used to label a specific fanfiction chapter or version.
The "expanded" aspect speaks to the community-driven nature of this horror universe. Details found in earlier titles like Five Nights at Marcus 1: Classic or the Remastered versions have been intentionally retconned or assigned "dubious canonicity." The true, "expanded" story is the one being woven in real-time on the official wiki, absorbing fan theories, expanding character backstories, and deepening the mythology with each new entry.
And interestingly, the keyword "Young Marcus" appears again. The third official Project Genesis robot, after Shadow Marcus and another iteration, was modeled after Marcus Drew and "by extension, Shadow Marcus." His Quantum Computer capacity was increased, giving him "the problem solving abilities of a 9-year-old"—though he was still considered a failure.
“I don’t consent,” Marcus said.