Gray Beaver and Lip-lip are characters from which 20th century novel?

"White Fang" is a novel by American author Jack London (1876–1916) and the name of the book's eponymous character, a wild wolfdog. First serialized in "Outing" magazine, it was published in 1906. The story details White Fang's journey to domestication in Yukon Territory and the Northwest Territories during the 1890s Klondike Gold Rush.

Much of "White Fang" is written from the viewpoint of the titular canine character, enabling London to explore how animals view their world and how they view humans. "White Fang" examines the violent world of wild animals and the equally violent world of humans. The book also explores complex themes including morality and redemption.

Two of the main characters from the book are: Gray Beaver a Native American chief who is White Fang's first master and Lip-lip a canine pup who lives in the Native American village and bullies White Fang.