The expression on his face implies the obvious answer. Of course it doesn't.

Something occurs to him, and Sweeney cocks his head to offer an alternative. "Sometimes ya go first." He taps the center of his chest with two fingers, mindful not to burn his clothing.

"Took a spear." That's all the clarification that's really required. For all the talk they've had of her life, he can't recall her mentioning how she got here in the first place. He's pretty sure she started as an inmate, so that doesn't bode well for the tale of her arrival.