Zelazny’s interest in magic, myths and dreams are already at present in these early stories which are considered among his best works. In 1970 he started the enormously popular Amber series, which have been adapted for comics and used as the basis for a computer game. Zelazny spent much of his later life in the writing of this series. The nine books, beginning with Nine Princes in Amber, evoked the betrayals of Jacobean drama. The narrator Corwin and rival princes and princesses double-cross one another, all seeking the crown. One of the siblings is responsible for Corwin losing his memory and one tries to kill him. Corwin’s arch-rival is Eric, his brother. Amber is a higher, sophisticated plane, and the actions of its godlike inhabitants reflect in the human actions - humans being the apes of gods. Corwin and his many siblings are more real than mortals, or the Gods of any Shadow realm - our world among others. The concept of Shadow has much in common with Jungian psychology. Jung considered the‘shadow’ the sum of those characteristics we wish to conceal - the most famous example found in literature is R.L. Stevenson’s Dr Jekyll and Mr Hyde. However, when the story continues, it turns out that Amber itself is not an ultimate reality, but shares a Ying-Yang relationship with the forces of Chaos.
The Chronicles of Amber included Nine Princes in Amber, The Guns of Avalon (1972), Sign of the Unicorn (1975), The Hand of Oberon (1976) and The Courst of Chaos (1978). Triumps of Doom (1985) opened a follow-up starring Corwin’s son Merlin. The series included Blood of Amber (1986), Sign of Chaos (1987), Knight of Shadows (1989) and Prince of Chaos (1991). The first five novels were collected together as The Chronicles of Amber (2000). Two further related works were A Rhapsody in Amber (1981) and Roger Zelazny’s Visual Guide to Castle Amber (1988, with Neil Randall).
— Excerpted from: Books & Writers, Petri Liukkonen
The Chronicles of Amber Page 190