The Boy Allies in the Balkan Campaign / Or, the Struggle to Save a Nation

The Boy Allies at Liege

The Boy Allies at Jutland

The Boy Allies under Two Flags

The Boy Allies in the Trenches / Midst Shot and Shell Along the Aisne

The Boy Allies with the Victorious Fleets / Or, the Fall of the German Navy

The Boy Allies on the Firing Line / Or, Twelve Days Battle Along the Marne

The Boy Allies at Verdun / Or, Saving France from the Enemy

The Boy Allies Under the Sea

The Boy Allies with the Cossacks / Or, A Wild Dash over the Carpathians

The Boy Allies in Great Peril / Or, With the Italian Army in the Alps