She wrote in 2018: “It would take nearly a year-and-a-half before the first debris from Malaysia 370 was found on a beach on Reunion Island, on the coast of East Africa.
“By then, the wing section had traveled too far and arrived too late to provide any clue as to where the plane landed in the water.
“At its smallest, the search area is three times larger than the one in which Air France 447 was found.
MH370’s search area has been helped by the discovery
MH370 went missing in 2014
It shut down the theory that once it disappeared from radar, the plane had turned north
“Still, the discovery of the wing flap was useful in one way, it shut down the theory that once it disappeared from radar, the plane had turned north, towards Asia and the Caucasus Mountains.”
Ms Negroni then went on to pull punches at other investigators over their own theories.
She added: “One of the most popular proponents of that line of thinking was Jeff Wise.
“He was not the only person who thought the plane was hiding in a remote part of the world.
“Thomas McInnerney, a retired lieutenant general and military analyst for Fox News, told the network’s morning news programme in 2015 that the plane could be in ‘the stans,’ referring to countries whose name ends in ‘stan’.”
Families hope to find out what happened to the flight
Finally, Ms Negroni went on to suggest we may not have received the full story over MH370 from the Malaysia government.
She continued: “I’ll leave that kind of worrying for Fox News watchers, I’m more concerned with a disturbing discovery made while working on the book.
“For all the apparent effort to try to solve the mystery of MH370, authorities may not be as committed to finding out what went wrong.
“That would not be unprecedented.”
Her claim comes just days after an anonymous source who works for a group dedicated to uncovering the truth told Express.co.uk he had been questioned over handing flyers in Putrajaya, a city south of Kuala Lumpur.
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The team discovered part of MH370 on Reunion Island
He said: “When me and my team went to Putrajaya, we had an unexpected moment there.
“I went to distribute flyers at Putrajaya Square, my friend at Alamanda Shopping Centre, and my other friend at Putrajaya Central.
“When I first arrived in the morning at Putrajaya Square, I was about to start distributing flyers, but a group of police came up to me and grabbed all the flyers that I was going to distribute.
“They asked me: ‘What is this?’
“It is MH370 and I told them it is from the organisation I work for.
More than 239 people were on board the jet
A campaigner claimed he has been arrested by authorities
“They took me to the police station nearby.
“I was very shocked at this moment.
“They asked me ‘Why are you bringing this issue up after so long? Why didn’t you a long time ago?’
“I didn’t know how to answer the questions.”
Ms Negroni detailed her full theory on what happened later in her book.
She stated: “My theory is that an electrical malfunction knocked out the systems on the Boeing 777 and that the plane lost pressurisation incapacitating the pilots.
“Whatever happened, it could not have caused damage serious enough to affect the airworthiness of the plane, since it flew on until running out of fuel many hours later.
“Likely, the men in the cockpit were overcome by the altitude sickness known as hypoxia, which robbed them of the ability to think clearly and land the plane safely.
“Many of the links in the bizarre chain of events that night can be explained by hypoxia, because past cases have shown how rapidly those who fall victim to it turn imbecilic.”
However, this idea is just one of thousands that are seeking to piece together aviation’s biggest mystery.