In which the author visits the site of the camp his great-grandfather survived.

"The thing that knocked the breath out of me was a large stone trough in the kitchen. Its official use was for washing potatoes. But I learned that occasionally, an SS man would use it to drown an inmate, just to show that he could. This was the true evil of the camp: even everyday objects -- a shower, a trough -- could suddenly become an instrument of torture. Nothing was left in the camp that was not tainted by death."

Page 104

"The Language of Thieves: My Family's Obsession with a Secret Code the Nazis Tried to Eliminateby Martin Puchner" | Goodreads

https://www.goodreads.com/en/book/show/50489374-the-language-of-thieves