Flandry's Judgment Day

Eriau (Merseian) numbers are duodecimal and Dominic Flandry is trained to remember a sequence of numbers even though:

they are in an alien language;
he hears them only once;
he does not yet understand their significance.

Flandry now has the secret of Starkad in his head. He must keep that head intact and out of the reach of Merseians and hostile Terrans.

"Flandry stood over Dwyr, in a private Judgment Day."
-Poul Anderson, Ensign Flandry IN Anderson, Young Flandry (Riverdale, NY, 2010), pp. 1-192 AT Chapter Thirteen, p. 133.

Dwyr, the cyborg spy "turned" by Abrams, is dying. Every day is Judgment Day if we can see it. Inner issues, called "sin" in Biblical terminology and "karma" in Buddhist terminology, are always present although we are not always aware of them. Flandry is becoming aware:

"Seeing the anguish upon her, Flandry knew in full what it mean to make an implement of a sentient being."
-op. cit., p. 131.