Re-Using Former Settings

In Poul Anderson's The Man Who Counts, Nicholas van Rijn is ship-wrecked on Diomedes. See here and here.

In Ensign Flandry, the Terran Emperor holds a birthday party at the Coral Palace. See here and here.

In A Circus Of Hells, Dominic Flandry visits Talwin. See here.

In The Day Of Their Return, there is speculation about the environment of Chereion. See here.

In "The Warriors from Nowhere," Flandry visits the Taurian Sector of the Terran Empire.

In A Knight Of Ghosts And Shadows, Flandry attends an Imperial bon voyage party at the Coral Palace, visits Diomedes, revisits Talwin and the Taurian Sector and attacks Chereion.