The chronicles of Amber

Farmer's sci-fi/fantasy series follows immortal, human-like "Lords" who construct their own artificial, customized pocket universes and battle each other for dominance. Zelazny took this conceptual framework to create the multiverse of Shadow. Amber and the Courts of Chaos are the two fixed realities, while everything in between consists of infinite, parallel worlds. The royal siblings act exactly like Farmer's squabbling, god-like Lords—possessing the unique power to manipulate, traverse, and rule over these lesser realities.

Durrell’s series features four novels that retell the exact same sequence of events in Alexandria from the vantage points of different characters. Zelazny used this technique to master the unreliable narrator. In the first five books (The Corwin Cycle), everything is filtered through Corwin's personal biases, lies, and flawed memories. The reader gradually learns (just as in Durrell's work) that reality changes entirely depending on who is telling the story.