Their frontier would seem to be impregnable, and the difficulties of invading England, even from the air, are very much as they were during the last war.

It was these considerations which made my uncle persevere in his attempt at secret-service work on the Continent.

Everything depends upon our knowing exactly what is in store for us." "And have you discovered that ?" she enquired.
He shook his head.
"Everything that we have learnt so far has been of negative value," he replied.

"The German citizen army is large, but not threateningly so.

So far as we have been able to discover, they do not seem to have any secret store of guns or ammunition.