The Call of the Wild
By Jack London
This book tells the story of the magnificent dog Buck, who is a loyal pet until cruel men make him a pawn in their search for the gold of the Klondike. Brutally treated, Buck finds the blood of his wolf ancestors rising within him and breaks free to roam the Alaskan wilderness as leader of a ferocious pack. Banned in three European countries in the '20's and '30's, it is now required reading in many U.S. schools.