A beautiful book; the author does not impose his vision of things, but it starts from a mere assumption and built two different lives from the same starting point. The process is original and takes us quickly; we are anxious to know the outcome, at least as regards Adolph H n which has unfortunately never existed, and curious to observe in what ways and by what means we come to the other better-known character. The book is very well written and the original subject, boring and very well treated.