The reason why they chose to go to London instead of heading home was quite simple: they had a series of lectures to conduct there, and as Leonard Ethan's fame grew, various universities were increasingly eager to invite him to speak.
Leonard Ethan rejected most of these invitations because he believed that he dealt with specialised subjects, not popular science, and hence preferred his audience to be comprised of professionals.
However, not all such speaking engagements were declined. For instance, when professional institutions extended an invitation, he would gladly go and was willing to share some genuinely valuable insights with the teachers and students in attendance.
To Leonard Ethan's surprise, this selective approach to lectures actually enhanced his reputation, and he was regarded as a scholar who was both strict in academic rigor and exceedingly upright.
