In March 2000, a suitcase arrived at a children's Holocaust education centre in Tokyo, Japan.

Painted on the outside in white, were the words 'Hana Brady, May 16, 1931' and 'Waisenkind' - the German word for orphan. Everyone was desperate to discover the story of Hana - Who was she?

What happened to her? Keen to find out for herself, Fumiko Ishioka, the museum's curator, set off on a journey of discovery through three continents, and back to the darkest times of war torn Europe.

This is the true story she gradually uncovered of Hana and her family, whose happy life in a small Czech town was turned upside down by the invasion of the Nazis.