I think that a strong response can be developed upon many of the passages in Boyne's work. I like the ending, itself, for I think that there is much within it where writing can be generated. Consider a part of Boyne's ending:
...of course all this happened a long time ago and nothing like that could ever happen again. Not in this day and age.
It might be really interesting writing to examine the implications of this passage. Is there a danger in presuming that something like the Holocaust could not happen again? Is there an equal danger in presuming that something like the Holocaust could happen again? Both questions are opposites of one another and are truly perplexing in that there are no easy answers to either. It is for this reason that I think that the statement makes for good writing. A writer can explore the implications of the passage and relate it to the modern setting with a level of thought and analysis that can serve to underscore the importance of the Holocaust and its implications.