How does Mr. Standfast develop the theme of Good Versus Evil?

Mr. Standfast by John Buchan develops Good Versus Evil across the chapters the companion marks for this theme.

The conflict is framed as a clear moral struggle between the Allied cause (associated with honor, comradeship, and decency) and the German enemy, personified by the villainous and manipulative Ivery, who represents treachery and ruthless ambition.

The confrontation frames Ivery as the embodiment of evil, with Blenkiron and Hannay as agents of justice.