Although Stevenson returned to Britain shortly after this first meeting, Fanny apparently remained in his thoughts, and he wrote an essay, "On falling in love", for the Cornhill Magazine .  They met again early in 1877 and became lovers. Stevenson spent much of the following year with her and her children in France.  In August 1878, Fanny returned to San Francisco, California. Stevenson at first remained in Europe, making the walking trip that would form the basis for Travels with a Donkey in the Cévennes (1879). But in August 1879, he set off to join her, against the advice of his friends and without notifying his parents. He took second-class passage on the steamship Devonia , in part to save money but also to learn how others traveled and to increase the adventure of the journey.  From New York City, he traveled overland by train to California. He later wrote about the experience in The Amateur Emigrant . Although it was good experience for his literature, it broke his health.