Dwarves And Swords

Operation Luna, 25, p. 234.

The speaking sword, Fotherwick-Botts, says that dwarves made:

Sigurd's dragon-killer;
Skofnung (scroll down);
Tyrfing;
himself.

All of this has been said before as the links show but I do not remember it over the years.

Recent references to Stamford Bridge and to the Varangian Guard (see The Sword) linked Operation Luna to Poul Anderson's The Last Viking Trilogy. Skofnung (see the Wikipedia article, here) is a link to Anderson's Hrolf Kraki's Saga whereas Tyrfing (Wikipedia, here) is a link to his The Broken Sword.

Thus, even more than before, Operation Luna feels like a later installment of a single long series although at the same time each of these works is complete in itself:   

The Last Viking is historical fiction;
Hrolf Kraki's Saga is an adapted saga;
it and The Broken Sword are heroic fantasies;
Operation Luna is an alternative history novel and, I think, is sf, not fantasy, because its magic is scientifically rationalized;
Operation Luna is also part of a longer sequence, as we know.