The crystal castle children book cover 1The crystal castle children book cover 2The crystal castle children book cover 3The crystal castle children book cover 4Cover Prompt: “A shimmering crystal castle with children looking through crystal windows, with smoke-like reflections of other worlds.”The crystal castle children book cover 5The crystal castle children book cover 6The crystal castle children book cover 7The crystal castle children book cover 8Book Cover Prompt: “A shimmering crystal castle with children looking through crystal windows, with smoke-like reflections of other worlds.”The crystal castle children book cover 9The crystal castle children book cover 10The crystal castle children book cover 11The crystal castle children book cover 12