Annette and Stuart Baker have travelled many miles in the search for salvation.
For their lost daughter Mary, for themselves, for their two sons Jack and Henri, and for all the tormented, broken souls swallowed up by the darkness and despair of mental illness.
And much like pilgrims embarking on a noble yet treacherous quest, they could never have predicted the twists and turns their journey has taken since Mary took her life in March, 2011.
They have stumbled through the pitted and pock-marked corridors of an inept mental health system, they have faced the desolation of a grief no one "gets", they have recoiled from the apathy and indifference of the very people who should have helped safeguard the wellbeing of their daughter and they have talked and wept with countless others whose loved ones fell through the cracks.
This week the Bakers' journey has taken them to the other side of the world - to an unexpected and unimaginable place.
A place where their beloved daughter's story - and the anguished pain of what could have been - is cradled and held, ever so gently, up to the light.
They have flown to London for Wednesday night's official opening of an event no parent should ever have to attend.
Where the heartbreaking story of Mary's life - and death - has been featured in a powerful pop-up exhibition at Covent Garden ahead of World Mental Health Day on October 10.
The Museum of Lost and Found Potential reveals the stark and powerful picture of human potential that is lost globally to people, families, communities, businesses and society due to neglected mental health and suicide.
It also shows the potential of all that can be found, when people receive the support they need.
The brainchild of United for Global Mental Health, the establishment of the museum is part of a rolling campaign to unite people across the world to call for greater action on mental health.
The museum shares 16 interactive portraits of people from around the world.
Through video, sound and real or imagined artefacts, visitors are transported to lost and found chapters in the lives of the people whose stories are told in the museum.
People lost to suicide and their loved ones left behind are also featured inside.
Mary is the face of one of those people.
A tall, slender black riding boot forms part of her exhibit - it stands as a stark monument to a life brimming with potential cut short far too soon.
These poignant personal stories demand that more be done to support mental health across all aspects of our lives - in every corner of the world.
There is a focus on the importance of world leaders investing more in the research and evidence that can identify solutions to improve mental health for all.
"If we knew what we know now, we might have been able to save her," the Bakers have said repeatedly.
The stories featured in the museum are in equal parts devastating and uplifting - all are life-changing.
There is a survivor of multiple suicide attempts who is now writing books and making films to support others.
A Ghanaian women lost her job due to bipolar and psychosis and is now receiving treatment and back working and helping others to break the silence and get the support they need.
But renowned British journalist Mark Rice-Oxley, editor and columnist at The Guardian, this week said that "perhaps the saddest story belongs to Stuart and Annette Baker, whose daughter Mary killed herself after a three-year struggle with an eating disorder".
"The couple have been tireless advocates for suicide prevention and openness about mental illness in the eight years since," he wrote.
"Riding boots and an annotated book are the physical reminders of Mary's life - a girl who loved to ride horses, play water polo, write poetry, dive.
"Remarkably, eight years after her death, her parents are still able to see beyond what was lost to glimpse what they have discovered.
"Mary's potential was lost," said Stuart, "but possibly there is purpose in what we have been doing.
"I'm hopeful that maybe we are about to see an improvement in what we are doing with our mentally ill."
Silence. That is how the world has treated #MentalHealth. Governments & leaders have been ignoring it, expecting us to stay quiet. Every #40seconds someone dies by suicide. It is time to demand change. #SpeakYourMind in our voice petition - Join the mental health revolution pic.twitter.com/X253lDQCbe— Speak Your Mind (@gospeakyourmind) September 24, 2019
The World Health Organisation (WHO) estimates that every 40 seconds, someone in the world dies by suicide.
"The museum is a rallying cry to us all - it's time for a global mental health revolution," said Elisha London, founder and CEO of United For Global Mental Health.
From September 23 to October 10, people across the world have united their voices to support the Speak Your Mind campaign demanding greater action on mental health.
The idea was for people the world over to "Speak Your Mind" for 40 seconds to leaders, asking them to invest, empower and educate.
The Museum is a rallying cry to us all - it's time for a global mental health revolution.Elisha London
It's a call to action on behalf of each person who dies by suicide every 40 seconds.
It's for the 800,000 lives lost every year.
Those who know Annette and Stuart best might well smile a little at their involvement in this global war cry; in the bittersweet knowledge of their vocal and tenacious campaign to shine a light into the darkness of suicide.
To speak their minds in the uneasy silence.
- The London Museum of Lost and Found Potential exhibition will be on display at Covent Garden, London until October 15 before touring the world as a travelling exhibition.
- Visitors to the exhibition will also be invited to leave a 40-second message spelling out what action they want their governments to take. As Rice-Oxley points out, by the time one person has finished their recording, another will have taken their life somewhere in the world.