
Kelley has also written over five collections as well as short stories. Other books authored by the same writer include The Age of Legends series, Darkness Rising Trilogy, Darkest Powers Trilogy. Those not familiar with the series would expect it deals with the battle between evil and good, however, this is not the case, but rather the author makes these novels mostly episodic with a continuation of the plotline and the development of the characters. Women of the Otherworld series characters gain their supernatural powers either through heredity or via an existing a supernatural being of the same type. This aspect of using various supernatural characters makes Kelley Armstrong a unique writer this is because many of the current writers only limit themselves to one or two supernatural characters when writing. Some of the characters in this series include werewolves, witches, necromancers, vampires, shamans, sorcerers, demons, and others.

Women of the Otherworld series is a contemporary fantasy that contains the supernatural characters of the modern northern American life and with some active elements of love. Following the success of her debut novel, since then she has had over 20 distinct fantasy novels published, 13 of these novels are Women of the Otherworld, 6 are the Darkest Power series, while Cainsville series makes up 4 of these novels. However, the novel had already made some good sales the previous year, 1999. Bitten is her first novel sold which was published in 2001.
