"Rainbow's End" is a novel written by American author Rex Beach, first published in 1915. The story is set in the Alaskan wilderness during the Klondike Gold Rush of the late 19th century. The protagonist, Jim Bailey, is a young man who travels to Alaska in search of adventure and fortune.

As Jim navigates the harsh realities of life in the wilderness, he encounters a diverse cast of characters, including prospectors, traders, and indigenous peoples. He forms friendships, faces challenges, and experiences the highs and lows of the gold rush era.

"Rainbow's End" explores themes of ambition, perseverance, and the lure of wealth, as well as the impact of greed and the struggle for survival in a rugged and unforgiving environment.

Rex Beach was known for his vivid depictions of the Alaskan landscape and his ability to capture the spirit of the Klondike Gold Rush. "Rainbow's End" is one of his most enduring works, offering readers a glimpse into a fascinating period of American history.