AI Prompt Used:
"A bold, dynamic illustration of a large, open fantasy book with glowing pages, from which a vibrant, stylized portal emerges. Silhouettes of cool, adventurous characters (like a knight, a wizard, or a futuristic explorer) are stepping out of the portal, surrounded by magical sparks and stars. The number "12" is subtly integrated into the book's spine or cover. Rich, deep colors with sharp contrasts, graphic novel style."