The Singing Citadel by Michael Moorcock, Mayflower Science Fantasy, 1970-1972. Artwork officially uncredited but thought to be by Bob Haberfield.
tags: ~Bunny on Planet Q~, Michael Moorcock,The Singing Citadel,Science Fiction,Sci Fi,Sci Fi books,Psychadelic Sci Fi,
from: https://bunnyonplanetq.tumblr.com/post/78879505819