- EbookThe Boy Allies in Great Peril; Or, With the Italian Army in the AlpsClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies at Verdun; Or, Saving France from the EnemyClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies at Liège; Or, Through Lines of SteelClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies at Jutland; Or, The Greatest Naval Battle of HistoryClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies at Verdun; Or, Saving France from the EnemyClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies with Uncle Sam's CruisersClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies in the Trenches; Or, Midst Shot and Shell Along the AisneClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies in Great Peril; Or, With the Italian Army in the AlpsClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies with the Victorious Fleets; Or, The Fall of the German NavyClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies with the Cossacks; Or, A Wild Dash over the CarpathiansClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies with Haig in Flanders; Or, the Fighting Canadians of Vimy RidgeClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies Under the Sea; Or, The Vanishing SubmarinesClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies under Two FlagsClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies on the Firing Line; Or, Twelve Days Battle Along the MarneClair W. (Clair Wallace) Hayes
- EbookThe Boy Allies in the Balkan Campaign; Or, the Struggle to Save a NationClair W. (Clair Wallace) Hayes