This is complete list of works by American science fiction and fantasy author Fred Saberhagen.
[1] Saberhagen was inspired to write the first novel in the series, The Dracula Tape, as a result of "re-reading Stoker's original, and being struck by the fact that this titanic character was hardly ever on stage, though of course central to the book.
Naturally in my contrarian way I wondered what he was really doing and thinking while the other characters made their plans to hunt him down, and as soon as I started listening for his voice, I heard it.
"[2] Saberhagen's Dracula novels are based on the premise that vampires are morally equal to normal humans: they have the power to do good or evil; it is their choice.
After destroying both their creators and the opposing side in a long-ago galactic war, the self-replicating Berserkers have continued to wipe out all forms of life that they encounter in the Milky Way, which leads to the cooperation and coordination of most of the sentient races in major attempts to defeat them.