The Boy Allies on the Firing Line: Or Twelve Days Battle Along the Marne (1915)

Clair Wallace Hayes was the author of a number of early twentieth century novels and stories about the First World War, including The Boy Allies at Lige (1915), The Boy Allies on the Firing Line (1916), The Boy Allies With the Cossacks (1915), The Boy Allies in the Trenches (1915), The Boy Allies in Great Peril (1916), and The Boy Allies on the Somme (1917).