‘the time will come soon when, if men will not learn that lesson, then they will be taught it in fire and blood and anguish.’
•repetition of ‘will’ emphasises impending doom
•hint at wars -> audience realisation of need to change
•could hint at possible future -> audience realise that the recent suffering cannot be repeated
•’fire and blood and anguish’ are biblical references to hell and sin, and the inspector‘s possible supernatural medium