This third installment of the adventures of Mike Horn (after 0 Latitude and Conqueror of the impossible) sends us to the North Pole for a night of 1000km crossing. It is best to read the Conqueror previously impossible because Mike refers to it regularly. Once more, he shares with us the excesses of his adventure, the permanent struggle to survive against the cold and bears! One downside: when you're on a frozen surface and night is a bit always the same and the twists are less frequent than in previous adventures. I recommend this book, this ode to transcendence allows us to relativize our daily and say ... that there was worse on Earth!