The last place we visited was the close-confinement part where prisoners were kept as a punishment for some breach of the rules.

They looked cheerless enough, but I pretended to gloat over the sight, and said so to the lieutenant, who passed it on to the others.

I have rarely in my life felt such a cad.
On the way home the lieutenant discoursed a lot about prisoners and detention-camps, for at one time he had been on duty at Ruhleben.
Peter, who had been in quod more than once in his life, was deeply interested and kept on questioning him.

Among other things he told us was that they often put bogus prisoners among the rest, who acted as spies.

If any plot to escape was hatched these fellows got into it and encouraged it.