Saint receives a call from a young-sounding streetwalker in St. Louis who refuses to give her name. The caller says a new girl is being forced into prostitution, that the girl is no older than sixteen, and that she resembles a faded missing-person poster the caller once saw in Alice Springs. Although Saint knows the timing will make her late for dinner with Jimmy and his mother, the tip feels urgent enough that she immediately takes her keys and leaves.

After driving into St. Louis, Saint reaches a bleak stretch of North Street where men wait in cars and a group of young men watch her arrival. She checks her gun before a heavily made-up teenage girl approaches her car, drops a piece of paper inside, and disappears into a damaged building. The paper contains an address about a mile away, and when Saint reaches the house on Fairshaw and Brooklyn, she is hit by a powerful instinct that she has found something important.

Saint calls in the location and gives dispatch enough information to bring in support. While she waits, she sees an upstairs light go out and notices the shape of a young girl moving past the window with a large man behind her. Music blares from inside the house as local police arrive, take over the operation, and make the arrest while Saint stays low in her car.

The officers bring the girl out and later identify her as Mia, a sixteen-year-old who became trapped with a group she could not escape. Saint follows to the St. Louis Police Department and waits in the parking lot until dawn, when Mia's distraught parents arrive and embrace their daughter. As Saint drives home in the morning light, the chapter reveals the larger significance of the rescue: this is the first time Patch's long, obsessive search has actually saved a missing girl.