The Oboe navigation system was in its infancy and as one of only two Oboe squadrons, Smith was soon in the air illuminating bombing targets. Over 50 operations, Smith relives successes and failures with the new target marking system; triumphs and disappointments, mission aborts and successes, and all the fears and nervousness entailed in being the first aircraft over a heavily defended target. His narrative, interspersed with extracts from official Bomber Command records combines an official and personal view of the WWII air war.