This book is a powerful call to action to bring the gospel of Christ to the fast - changing world of today. It portrays the need of the millions, the hunger of the individual. It gets to grips with the urgency and vital nature of the message. It looks at what the church has already done, and what is yet to be done. It demands a response from the individual, and shows how this can be worked out in practical ways. It highlights "...the tremendous disparity between the average Christian sitting tight at home and the girl in her twenties slogging up the jungle trail weeping for strength and spiritual endurance to continue and not be home". It is a book which not only must be read but demands to be acted on.