must stand for von, and I had considered the German names beginning with I--Ingolstadt, Ingeburg, Ingenohl, and all the rest of them.

I had made a list of about seventy at the British Museum before I left London.
Now I suddenly found myself taking the I as the numeral One.

Idly, not thinking what I was doing, I put it into German.
Then I nearly fell out of the bed.

Von Einem--the name I had heard at Gaudian's house, the name Stumm had spoken behind his hand, the name to which Hilda was probably the prefix.

It was a tremendous discovery--the first real bit of light I had found.