Prompt: Can we create an illustration for a spooky Halloween story based on this passage? "The excavation site sat in a hollow of Northumberland forest where the canopy was thick enough to dim October’s afternoon into perpetual dusk. Moss clung to the stones. Heather knelt in the damp earth, running her fingers along the carved lines. “It’s not a church,” she said, not looking up. “Not a tomb. Not a well.” Melissa crouched beside her, close enough that their shoulders brushed. “What is it?” “That’s the problem.” Heather’s voice carried the dry frustration of a woman who’d spent twenty years reading dirt and stone and finding answers. “I don’t know.” The structure was low and circular, built from rough-hewn granite that didn’t match the local geology. No door. No window. Just a dome of stone that seemed to exhale cold air into the afternoon. Suki was on her knees at the opposite side, brush in hand. “These symbols aren’t Anglo-Saxon, nor Celtic, they seem...older."" Model: GPT Image 2.5 Flare v2.5