What was Grandpa Van der Kolk doing under the stairs in Beverwijk during the war? Granddaughter Eveline (43) seeks answers

Eveline Smildiger is investigating her grandfather Hendrik van der Kolk’s mysterious wartime activities at his former pharmacy in Beverwijk. She seeks to uncover the details of what he did under the building's stairs between 1940 and 1945 to complete her family history.

