“My grandmother spoke of a trading post,” Mary said, her voice like dry palmetto leaves. “Lost since the Hurricane of ’28. Medicine bundles. Silver. A bell that called the dead. It’s out there, Captain Taylor. Under the peat.”

Tessa slipped into her waders, stepped into waist-deep water, and followed the sound. Fifty yards north, beneath a curtain of strangler fig, she found it. Not a trading post—its remains. A collapsed roof of palm thatch, a stone hearth overgrown with orchids, and scattered among the roots: shards of blue-and-white ceramic, a rusted machete, and a small, tarnished bell no bigger than her fist.

She cut the engine. Silence fell like a blanket. Then she heard it: a low, rhythmic tink… tink… tink . Not a bell. A small iron pot, maybe, or a copper pan, swinging against a post. The sound was impossible. There were no structures for miles.

At twenty-six, Tessa is the youngest airboat captain in the Everglades City fleet, and the first woman in three decades to lead the notoriously difficult “Deep Glades” night expedition. Her grandfather, “Sawgrass” Sam Taylor, used to say the swamp doesn’t give up its stories easily. “You gotta earn ‘em, Tess,” he’d rasp, steering their old flat-bottom skiff through mangroves that looked like tangled cathedral arches. “You gotta listen with your boots in the mud.”

Tessa learned to listen.