In shock and found clinging to a tree branch, Bethany Richter is pulled from thrashing floodwaters that have decimated the town of Garnett, Texas, and killed a dozen residents.

Six months after solving the murder of a local waitress, Annie McIntyre is working as an apprentice PI when she's handed her first solo case: uncover the identity of the man who rescued Bethany before he was swept downriver.

When Annie's search turns up a different victim--shot dead, not drowned--Annie questions if the hero they seek is actually a killer.

Flexing her new skills while relying on the wisdom of her eccentric, ex-cop grandfather, Annie follows the case into a web of drug dealers, preachers, and wayward drifters trying to make sense of life after a disaster. Annie's own convictions are put to the ultimate test as long-held secrets, corruption, and violence are exposed like the ruin that lies beneath receding waters.