One of the most famous works of Jack London - the story of a dog who became the leader of a wolf pack, overcoming the cruelty of people, the fury of rivals and the severity of northern nature on his way - adapted in this publication according to the method of Ilya Frank: provided with a literal translation into Russian and the necessary vocabulary -grammar commentary (without simplifying the text of the original). The uniqueness of the method lies in the fact that the memorization of words and expressions occurs due to their repetition, without memorization and the need to use a dictionary. The manual contributes to the effective learning of the language, can serve as an addition to the curriculum. Designed for a wide range of English learners and those interested in English culture.