Design a book back cover that complements the medieval, mysterious theme of the

Design a book back cover that complements the medieval, mysterious theme of the front. The scene is set in a portion of a castle garden illuminated by soft moonlight, with a serene fountain of clear water reflecting the starry night sky. Surrounding the fountain, there are blooming blue thistle flowers, their vivid blue and violet petals standing out against the dark green foliage. A stone bench is placed beside the fountain, appearing inviting yet empty, hinting at a story of solitude. The soft shadows of the garden are gentle, creating a peaceful yet slightly eerie atmosphere. A faint, shadowy reflection of Christina, the main character, is visible in the water of the fountain, suggesting her deep reflection and the inner journey she undertakes. The book’s synopsis is centered on the back, framed by a subtle medieval ornamental border at the top and bottom, written in a legible yet elegant font that matches the front cover’s style.

Avoid using any bright or unnatural colors that would clash with the dark and serene mood. Do not include any modern or futuristic elements like electrical lights or modern architecture. The scene should not be overly bright or well-lit, and avoid including any other characters or animals that could distract from the focus on the environment. Do not make the setting too vibrant or lively; keep the tone introspective and slightly melancholic. Avoid using overly ornate or hard-to-read fonts for the text. These prompts should guide the image generation to closely match the vision you have for your book cover and back cover.