The Flaming Forest by James Oliver Curwood

A tale of mystery, romance, and honor, as David Carrigan must choose between his duty as an officer of the law and a girl who holds him captive; a girl who Carrigan thinks he may have fallen in love with no less! Who is this strange girl Jean-Marie, and why won’t she give him his freedom? And who are the people that she surrounds herself with along the great Canadian rivers and wilderness barrens and forests of the northwest?