The 17th volume of the collected works of Poul Anderson includes the 7th book of the Technical History series: two novels from the period of the Terran Empire, the second of which belongs to the sub-series about Dominic Flandry.

Ravaged by civil war Aeneas seethes in anticipation of a new explosion. Commissioner Desai vowed to bring peace to the rebellious planet. But the Archon's heir is hiding among the dissatisfied, and a strange mystical cult of the Ancients arises in distant Orca... Commissioner Desai's duty is to establish peace at any cost. The Orcan Jaan's goal in life is to fulfill the command of the Ancients at any cost. The task of the Merseian agent Aicharaich is to unleash a new civil war at any cost... (“The Day They Returned”)* * *The strange semi-religious movement on Diomedes turns out to be just a screen hiding the true plan of Aicharaich, a plan concerning Dennitsa, a planet that has been standing guard over borders of Merseia, but inhabited, in addition to earthlings of Slavic origin, and lizard-like people from Merseia... (“Knight of Ghosts and Shadows”)

ContentsThe Day They Returned (translation by E. Alexandrova) Knight of Ghosts and Shadows (translation by K . Slepyana, E. Dribinskaya)