The transformation of print technology had a profound impact on the shape the adventure genre and through focusing on the new developments in print culture and the transformation of the nineteenth-century literary market, this chapter investigates the socio-cultural influences and the subsequent impact of these transformations on the adventure genre. These transformations are shown through increased production and widespread availability of popular fiction, the influence of characters and plots readily associated with the penny press, and illustration technology that adds a complex paratextual and intertextual reading to the stories. Printed images also visually demonstrate how fin-de-siècle heroic manliness reveals distinct elements born out of nineteenth-century industrialisation. These transformations relate to the psychological evolution of the industrialised gentleman-hero where the concept of industry and self-help is an integral part of the construction of the industrialised hero and the importance of industrious behaviour for the nation’s future well-being. Industrious behaviour becomes an overt attribute that determines success and is witnessed in later adventure heroes. The legacy of Robert Louis Stevenson’s Treasure Island helps with understanding the fin-de-siècle adventure hero and his relationship to industrialisation as well as defining the types of heroes seen in fin-de-siècle texts and illustrations.