Where Duty Called; or, In Honor Bound

The narrative follows three young adventurers who, having emerged from earlier jungle exploits, join a steamer only to be drawn into a revolt on the South American coast. They endure capture and imprisonment, execute daring escapes, and undertake perilous inland journeys through jungle and mountain to evade and confront guerrillas. Along the way they face betrayals, investigate a mysterious photograph and a spy network, employ scouting and ruses, and accept duties that alter their roles. The story culminates in pitched engagements, reconciliation with allies, and an outcome of victory and restored peace.