Zdenka Fantlova's peaceful life was changed forever when she was sent to Terezin concentration camp.
Here she was given a humble engraved tin ring by her first love Arno.
When he gave her the ring he said, 'That's for our engagement. And to keep you safe. If we are both alive when the war ends I will find you'.
Arno was sent East on a penal transport later that same day.
Zdenka survived six concentration camps including Auschwitz, Gross Rosen, Mauthausen and Belsen - the worst of all - risking her life for the tin ring.
In the last chaotic days of the war in Belsen she crawled to a Red Cross post.
There she was saved by an unknown British soldier to whom the book is dedicated.
A unique and incredible story of love, human endurance and will power.