Peter Matthiessen's 2014 novel In Paradise is set in the mid-90s, at a spiritual retreat at Auschwitz.
From the author's Q & A with the Amazon books editors at Omnivoracious:
Chris Schluep: When I first started reading the galley, I thought, “I didn’t know Peter Matthiessen was Jewish.” But you’re not. How aware of this were you while writing the novel?--Marshal Zeringue
Peter Matthiessen: I was aware that I wasn’t Jewish, of course, and I was only somewhat hindered by doubt on that score. It was more that I wasn’t qualified in other ways. I wasn’t a veteran of the camps, and perhaps more important, I hadn’t lost family in them; some people don’t think you’re entitled to write about the camps unless you’ve had first-hand experience of them. And of course I was humbled by the many powerful accounts of life in the camps: who needed mine? If I couldn’t bring something fresh to it, why do it at all? Nonetheless, there was a strange experience I wanted to write about. In the mid-1990s an international group of more than a hundred went to Auschwitz. We chose to go in the winter, because that was the toughest time for the prisoners, and we stayed in the former SS barracks and meditated on the selection platforms in all weathers. It was a way of honoring or “witnessing” for the more than a million who had died there. In addition to the violent impression the place itself made on us, so grim and relentless—the towers and gates, all that barbed wire, the few decrepit barracks still standing--most of us experienced a peculiar event in the course of our stay there, a manifestation of … something. I couldn’t purge myself of the wish to write about it. I’d kept a journal of my time there, and later I sketched out a factual account, but I found no way to do justice to the experience with the bare facts, which were nebulous. Under those circumstances, I felt I could ...[read on]