”Inferno in Cornwall: The Penhallow Hotel Mystery” recounts the tragic fire at the Penhallow Hotel in Newquay, Cornwall, on August 18, 2007, which claimed three lives: Monica Hughes, her son Peter, and Joan Harper. As the hotel was engulfed in flames, guests struggled to escape through smoke-filled corridors, and firefighters battled what became the worst hotel fire in Britain in 30 years. An investigation revealed potential arson as the possible cause, primarily centred around the hotel bar, though definitive evidence was lacking. In 2011, the hotel’s owners admitted to violating health and safety protocols, leading to a fine, but families felt this did not adequately address their loss. An inquest returned open verdicts for the victims, with key hotel staff refusing to cooperate, raising further suspicions. Amidst the investigation, a link to notorious serial arsonist Karen Pedley emerged, yet the connection was not thoroughly explored. The lack of clear culpability—whether it stemmed from negligence or malicious intent—remains uncertain, leaving many questions unanswered. The tragedy of the Penhallow Hotel fire underlines the frailty of life and the complexities of accountability, with justice still elusive for the victims and their families. The story emphasizes a haunting mystery that continues to provoke thought about human errors and darker motives behind life-altering events.