After the lunch Seppi appeared in my office, much amused: the Prof did not want his disreputable brother to know exactly where he worked, so he had offered to drop Seppi at Seppi’s office. Seppi, on the other hand, thought that the location of M.I.6 headquarters was too secret even for the Prof to know, so he had insisted that the Prof should be dropped first. They drove round and round St. James’s Park, neither prepared to give way to the other.

