Mary Louise

by L. Frank (Lyman Frank) Baum

"Mary Louise" by L. Frank Baum is a novel published in 1916. Fifteen-year-old Mary Louise Burrows faces a devastating accusation: her grandfather stands suspected of treason against the United States. With unusual maturity and determination, she sets out to prove his innocence and uncover the real truth. Aided by federal agent John O'Gorman and his daughter Josie, a skilled investigator, Mary Louise navigates a world of suspicion and intrigue in this early example of the teenage girl detective genre.