Jan Eskymo Welzl

Pavel Eisner continued but did not finish and later Bedřich Golombek and Edvard Valenta completed the work.

The book Třicet let na zlatém severu ("Thirty Years in the Golden North") had great success in Czechoslovakia and also abroad, where people suspected that "Eskymo Welzl" did not exist and that the real author was Karel Čapek, who wrote the preface to foreign editions.

On the New Siberian Islands and later in Alaska Welzl worked as a fur hunter, trader and also acted as an unofficial Justice of the Peace.

His activities as the judge when fighting the crime (especially the robberies among the fur traders and moonshine sales) were leaning towards vigilantism and even included lynching the offenders.

His business was said to be spread from Franz Josef Land to Northern Canada, where he supplied hunters, gold miners and Arctic explorers with food, medicine, ammunition and other necessities.

In 1924, Welzl's ship the Seven Sisters was wrecked on the Pacific coast of the US where he was interrogated by the American government and deported to Europe.