There can't be many authors who make their debut at the age of 87. Especially when it's with a memoir so unflinching and haunting as this.
The gardens of the title are the World War I cemeteries of Nieppe, on the French-Belgium border, tended by Stephen Grady's English father, who married a girl from the local cafe then settled to life in his new country. He expected it to be a quiet life: after all, "lightning never strikes in the same place twice".
It does, of course. In 1940, the Germans sweep through again. The narrator's father is imprisoned. Occu-pation and ordeal descend.
For 15-year-old Stephen it's mostly a lark at first. A practical joker from childhood, with a penchant for posting horse-dung through the letterboxes of stuffy neighbours, he gleefully loots wrecked Messerschmitts, uses a captured field telephone to inflict electrical shocks on neighbours and plays other pranks on the Verdigris, as the invaders are called because of their green-grey uniforms.
Shockingly, unbelievably, he's arrested. He spends weeks of terror in Loos Prison, while men are shot in the courtyard nearby.