Whimsical Soul Gem in a Medieval Castle Hall

A cartoon-style scene inside a grand medieval castle hall. A glowing soul gem sits atop an intricately carved stone pedestal, cradled in a gilded silver-and-onyx cradle. The gem emits pale blue-white light with a tiny wisp-like spirit swirling inside. The hall features stone arches, torches on the walls, colorful banners, a suited knight armor, and stained glass windows that cast rainbow patches on the floor. Rendered with bold black outlines, bright saturated colors, and soft cel-shaded shading for a cheerful, comic look. A curious apprentice in a hooded cloak with oversized eyes points at the gem, while a tiny playful dragon perches on a column nearby. The camera angle is slightly from below to emphasize the gem’s glow, creating a magical, cozy, whimsical atmosphere.