During the summer of 1816, Mary Shelley, her lover, Percy Shelley, and her son took a trip from England to Lake Geneva, Switzerland. They plan was to spend the summer with another couple and their physician. It was here where the idea for her next horror novel, Frankenstein, would be conceived. As she enjoyed her summer, ghost stories were frequently told around the campfire late at night, resulting in a challenge for the five adults. Each was to come up with their own story by the end of the summer. Mary drafted Frankenstein, which eventually was manipulated into the now famous story. Unfortunately, Mary penned the novel as an anonymous author, which resulted in financial hardships and very little recognition went to her. Instead, many people believed that her husband, who was a poet, had written the book by himself. As a result of the actions of the summer, Percy's wife, who he was stilled married to at the time, committed suicide a few weeks after they returned. Also, of the five members of the summer retreat, Lord Byron, John William Polidori, Mary Shelley, and Percy Shelley all met untimely deaths. At twenty-nine, Percy drowned during a storm in the Atlantic ocean. John Polidori committed suicide at age twenty-five, due to gambling debts and depression. Lord Byron died from sepsis at age thirty-six. Finally, Mary died at age fifty-three in London due to a brain tumor. The only person to die of old age was Claire Clairmont, who did not take part in the writing challenge that summer.