"The Son Of The Wolf" is a collection of short stories, all with a common subject - the northern part of the American continent, the pursuit of gold during the rush in Yukon, and mainly the dealings between the locals (Native Americans) and the European settlers.
Though the stories are different, they have much in common, and the mostly the same characters appear throughout them. Jack London gained a lot of fame by writing about the Klondike gold rush, and rightly so. London certainly has a very good insight into the minds of the men and women that occupy the raw, unforgiving North. The stories tell of endurance, hardships and strife but also about true friendship, brave men and virtuous women.
Reading so many stories about the North makes me a little cold though, so I think I'll move to warmer places now :-)