Act as a professional logo designer with 10+ years of experience in fantasy-themed branding. Create a captivating logo for a [MIDDLE-GRADE FANTASY NOVEL SERIES] titled '[THE CHRONICLES OF ELARIAN]'. The logo should evoke a sense of mystery, adventure, and magic, incorporating elements like [AN ANCIENT TREE WITH GLOWING RUNES], [A MYSTERIOUS CRYSTAL AMULET], and [A SWIRLING CELESTIAL BACKGROUND]. Use a color palette dominated by [DEEP EMERALD GREEN], [GOLDEN AMBER], and [ETEREAL SILVER]. Ensure the typography is bold yet elegant, with a medieval-inspired font that complements the fantasy theme. The design should be scalable, suitable for both book covers and merchandise, and resonate with readers aged [8-14]. Include subtle details that hint at the series' themes of friendship, courage, and ancient prophecies.