Ellery Queen's doors to mystery Book

Since history began, man and animal have clashed in the ultimate struggle for survival. Even today, deep in the heart of the arctic, the struggle continues: Nanuk, a great polar bear, hunts walrus and seals. Miles away, a human sets out on his own hunting trip. As the great bear hunts his seals, the boy hunts the bear, once again playing out nature's unending cycle of predator and prey, where only the strongest come out alive.

As a huge polar bear hunts seals and a walrus for food to keep itself alive, it is in turn hunted by a young human.