Survivor kept key from a German shul destroyed on Kristallnacht. Now the relic is returning home

Cantor Jennifer Bern-Vogel was used to hearing her mother tell the story.

On the evening of Nov. 9, 1938, her mother, then Marianne Katzenstein, who was 16 at the time, was in her family’s synagogue in Bielefeld, Germany, practising the…