While Sark bears many marks of its Occupation, some secrets had remained hidden until this week.
The blaze on Little Sark has revealed what is believed to be a German dug trench, a section of Occupation-era wall, and previously undocumented ‘Jerry stakes’.
A bunker that no one knew about has also been revealed.
Its exact location is not being shared because members of the public are asked to stay away for safety reasons as it hasn’t been explored in more than eight decades.
Generations of the Perree family have lived on Little Sark for hundreds of years – but until this week they didn’t know about these structures built by the German occupying forces during the Second World War.
Sark Fire and Rescue Service Chief Officer Kevin Adams told Express that the patriarch of the family was as surprised as anyone to find out about it.
Mr Adams also explained that the fire was probably caused by sunlight reflecting through discarded glass that was buried deep within the furze.
Full buckets of litter have already been collected by fire fighters and other volunteers – with much more left lying in between scorched bushes across Little Sark.
The Sark Fire and Rescue Service Chief Officer told Express that he believes the litter caused the fire, but it will never be proven because an investigation would cost thousands of pounds and probably still not be able to determine what actually happened.
Mr Adams was also keen to clarify that he was not blaming anyone – because some of the litter will have been there for many decades.
Some of the litter that has been collected. Much more remains. 
Sark Fire and Rescue Service Chief Fire Officer Kevin Adams 
Sark Fire and Rescue Service Chief Fire Officer Kevin Adams 
An old coke bottle found in the scorched remains 
Sark Fire and Rescue Service Chief Fire Officer Kevin Adams 
An old sardines tin found after the fire 
Bottles of champagne and other litter has been thrown into bushes for decades on Little Sark 
Lits of rubbish remains 
Lots of rubbish remains 
Sark Fire and Rescue Service Chief Fire Officer Kevin Adams collecting some of the rubbish 
Lots of rubbish remains
“I started thinking about (how it started) right at the start, because you’re trying to think ‘well, where is the spark point? What’s started it?’ because you need to work out if it’s going to happen again.
“I don’t think we’d ever be able to work it out, but the majority of it is going to be sunlight on something that’s reflected, and it could be a piece of glass.
“That’s the trouble with beauty spots, you put a bench there so people can enjoy the view, but you took a photograph of a empty tin of sardines and a bottle of champagne and stuff. So unfortunately, we’ve picked them up, but they’ve been discarded and they would have been buried. And that’s not bespoke for Sark. That’s everywhere.”
Mr Adams showed Express around the fire site on Little Sark – explaining how it was actually two separate blazes, separated by a valley.
Both fire sites have revealed glass bottles, drinks cans, other tins, bits of bikes and other rubbish, along with some bullets believed to be left over from the German Occupation during the Second World War.
Mr Adams explained that they were found after he and other volunteers spotted something shining in the sunlight on Saturday afternoon.
While they kept watch on the glistening material, another man went to investigate and found a piece of mirror, with the old bullets near it.
The two fires were near the Silver Mines – with one surrounding the mine shafts that are usually covered by overgrown furze, and the other nearer properties on Little Sark including the ‘Sark Snack Shack’, with the flames reaching down the cliff face.
The flames were less than three metres from one recently built property on Friday morning.
Aimee Perree, who owns the property with her husband Joe, has been credited as the person who first raised the alarm.
She and members of the Perree family, and many others, helped to fight the fire.
While the fire was extinguished over the weekend, Sark Fire and Rescue Service are still monitoring the site incase any hot spots flare up.
Water tenders and other containers are still in place in case needed and a post-fire debrief hasn’t happened yet.
Mr Adams said that will happen once the crew are completely stood down and everyone has had time to catch up on some sleep.
“I’ve only got past experience of fires to go with, bearing in mind the one at the Pilcher Monument (2017) would go five or six days and then reignite. So unless we get an actual downpour, we’ll be walking the site for the next few weeks,” he said.
“There’s lots of things to learn,” he added, explaining that he never thought he’d have to call a major incident in Sark.
It was the first time one has been called in the 70 years since the voluntary emergency services were founded in Sark.
Mr Adams also wanted to thank a long list of people who he said had all helped in the major incident.
They include Kayleigh Hubbard who has launched a gofundme appeal, with the money going towards buying new or replacement equipment for Sark Fire and Rescue Service.
Mr Adams said they now know they need multiple different valves to fit different sized water containers so they can quickly move between when fighting fires.
This knowledge will be discussed in the post-fire debrief when it happens he said.
The long list of people that Mr Adams wanted to thank has been shared on the new Sark Fire and Rescue Service Facebook page.
He apologised incase he had forgotten anyone.
Mr Adams said both fire sites remain dangerous and members of the public are encouraged to stay away.
