Noun
alastor (plural alastors)
An avenging spirit or deity.
A number of the other science fiction novels include mystery, spy thriller, or crime-novel elements: The Houses of Iszm, Son of the Tree, the Alastor books Trullion and Marune, the Cadwal series, and large parts of the Demon Princes series. Source: Internet
Now Alastor, the malefactor, has reawakened and is intent on destroying the Redding fortune, unless they can kill him in the body he inhabits, which, oh, wait, that's Prosper, and why is his grandmother coming at him with a silver blade? Source: Internet
"The Alastor Cluster: A sprawling system of thirty thousand live stars and three thousand inhabited planets, the cluster is ruled by the mysterious Connatic. Source: Internet