"The Call of the Wild" is a novel by Jack London published in 1903. It tells the story of Buck, a domesticated dog who is stolen from his comfortable home in California and sold into the brutal life of an Alaskan sled dog during the Klondike Gold Rush. As Buck faces harsh conditions and learns to survive in the wild, he gradually reconnects with his primal instincts. Throughout the story, Buck encounters various characters, including John Thornton, who shows him kindness and loyalty. The novel explores themes of survival, nature, and the struggle between civilization and the wild, ultimately illustrating Buck's transformation into a powerful and independent creature.