This panel is from a classic Golden Age American comic book, likely dating back to the 1940s or 1950s. The scene depicts a dramatic moment in a rugged, rocky landscape.

The central figure is a woman with short black hair, dressed in a striking blue outfit. She's wearing a cape with red and yellow trim, which adds to her heroic appearance. Around her waist is a red and yellow sash, further emphasizing her heroic nature. On her wrists, she's wearing yellow and black armbands, and her boots are also blue with yellow tops.

The woman is bent over, examining something on the ground. In her right hand, she's holding a small, black object. Her posture and the question in her speech bubble - "What's this?" - suggest she's discovered something intriguing or potentially important.

The setting is a harsh, rocky environment. The ground beneath her feet is yellow, possibly indicating a sandy or rocky terrain. Surrounding her are large, jagged rocks in various shades of purple and gray, creating a sense of danger and adventure.

In the background, there's a large, white mountain, which adds to the dramatic landscape. The sky above is dark and ominous, filled with black clouds. This foreboding sky contrasts sharply with the white mountain, creating a sense of tension and impending danger.

To the right of the woman, there's a small, white cloud, which provides a subtle contrast to the darker elements of the scene.

The overall composition of the panel creates a sense of mystery and adventure. The woman's heroic attire, her question about the object she's found, and the ominous surroundings all contribute to an atmosphere of discovery and potential conflict. This panel effectively captures the essence of Golden Age comics, with its bold colors, dynamic composition, and dramatic storytelling.