Meaning: The quote you provided seems to reference the concept of a subculture or community of individuals who engage in role-playing or fantasy enactment related to vampires. The speaker mentions having heard about this "underworld" while living in New York, indicating that it was a known or rumored phenomenon within that specific location. Additionally, the mention of "several books on the phenomena" by James Patterson suggests that there is existing literature or research on this topic.

The idea of a vampire subculture or fantasy enactment has been a subject of interest and fascination for many people, both within the realms of fiction and in real-life communities. The concept of vampires has a long and rich history in literature, folklore, and popular culture, with numerous novels, films, and television shows exploring various aspects of vampire mythology and the allure of immortality, power, and mystique associated with these mythical creatures.

In the context of the quote, the mention of an "underworld" suggests that there is a secretive or hidden aspect to this phenomenon, potentially involving individuals who engage in vampire role-playing or fantasy in a subcultural or underground manner. This could involve organized groups, events, or gatherings where participants assume vampire personas and engage in activities related to their fantasy enactment.

The quote also alludes to the existence of literature on this topic, with the mention of books by James Patterson. It's worth noting that James Patterson is a prolific author known for his work in the thriller and suspense genres, and it is possible that he has written fiction or non-fiction that delves into the world of vampire mythology, subcultures, or fantasy enactment.

The fascination with vampires and the appeal of vampire fantasy enactment can be attributed to a variety of factors. For some individuals, the allure of vampires lies in the romanticized portrayal of immortal beings with heightened senses, supernatural abilities, and a dark, seductive allure. This portrayal often taps into themes of desire, forbidden love, and the exploration of human nature and mortality.

In real life, there are indeed communities and subcultures that embrace vampire mythology and engage in role-playing or fantasy enactment. These communities may vary widely in their practices and beliefs, with some groups focusing on the aesthetic and fashion aspects of vampire culture, while others may incorporate more elaborate rituals, ceremonies, or immersive storytelling experiences.

It's important to note that the portrayal of vampires in popular culture and the real-life enactment of vampire fantasies can take on diverse forms, ranging from lighthearted cosplay and social gatherings to more immersive and elaborate role-playing experiences. While some individuals may approach vampire fantasy as a form of entertainment or escapism, others may find deeper meaning or personal significance in their participation within these communities.

In conclusion, the quote you provided offers a glimpse into the existence of a subculture or community related to vampire fantasy enactment, as well as the availability of literature exploring this phenomenon. The allure of vampires and the exploration of vampire mythology continue to captivate the imagination of many individuals, both as a form of entertainment and as a means of engaging with themes of identity, desire, and the supernatural.