Two boys who were looking for buried treasure with a metal detector sparked a bomb scare when they brought home two Second World War anti-tank shells.
Kane Byrne and Alex Taylor, both 12, from Folkestone, were looking for trinkets and coins when they discovered the warheads.
The shells, which can 'vaporise anything within 6ft', were eventually destroyed in a controlled explosion by the police.
They were identified by Kane's grandfather, Mike Woodland, a former Royal Engineer bomb disposal expert, who said the weapons were defused but they needed to call the police.
Kane's dad Karl put the warheads in a bag in the back garden so they didn't overheat and explode.
Karl, 42, said: "When I saw those warheads in the house my face said it all.
"They wanted to show me the treasures that Kane had brought back.
"I felt panicked but kept calm for the children. I knew what those objects were."
The boys went exploring when they had the day off from Dover Grammar School for Boys because of flooding.
Kane, 12, told his local paper: "We didn't really know what they were at first. But I'm glad we found them because they've now been made safe.
"It hasn't put me off metal detecting but the police told me that next time I find something I'm not sure about to tell my dad first."
Alex added: "We dug it out and it looked like a large bottle. It was about 1ft deep in the ground.
"We took it back to Kane's house and cleaned it and decided to go back to see if there were more.
"We found the second one had been right next to the first and brought that back, too."
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