Subtraction

SUBTRACTION: In the alkali flats of 1869 Colorado Territory, Clara Kane counts.Seventeen names. Seventeen men who burned her parents alive and left her and her brother for dead. Half-Chinese and orphaned at ten, Clara has spent twelve years turning grief into geometry: every bullet drop, every wind drift, every heartbeat between shots. The mathematics don't lie. They never do.Now the last ten targets are gathered in the desert city of New Rome. One final night. One perfect count.But when he...