Manuela Lisa, the beautiful raven-haired daughter of a wealthy Spanish fur trader, was forced t flee her St. Louis home and venture westward at the age of 13 after the mysterious untimely death of her father. At her fathers bedside she received a small packet and, in his dying breath, her father told her a secret that would cause her to travel the mountains and valleys of the American wilderness to fulfill her quest. This is her storya courageous woman who left her mark in a mans world in the American west of the 1800s.

Vols. for 1871-76, 1913-14 include an extra number, The Christmas bookseller, separately paged and not included in the consecutive numbering of the regular series.