Having realized he could make a living as a writer, Hesse finally married Maria Bernoulli (of the famous family of mathematicians  ) in 1904, while her father, who disapproved of their relationship, was away for the weekend. The couple settled down in Gaienhofen on Lake Constance , and began a family, eventually having three sons. In Gaienhofen, he wrote his second novel, Beneath the Wheel , which was published in 1906. In the following time, he composed primarily short stories and poems. His story "The Wolf," written in 1906–07, was "quite possibly" a foreshadowing of Steppenwolf .