Les Royaumes de Borée ("the realms of Boreas") is a 2003 novel by the French writer Jean Raspail.

The narrative spans from the 17th century to modern times and focuses on Oktavius-Ulrich de Pikkendorff, an officer who is appointed commander of Valduzia, a grand duchy in Karelia.

[1] The novel received the Jules Verne Prize from the Breton Academy.

[3] Jean-Rémi Barland of L'Express described the book as an "epic, sonorous and majestic novel".

The critic wrote: "Riding on the counter-current of conformism, the novelist's heroes invest these frontiers of legend, and the plot, running over three centuries, encompasses a host of colourful characters captured in all their wild grandeur.