When 83-year-old Ida Wilde shared a photo of herself on Facebook, she was expecting her friends to like and share it.
Instead, it caught the eye of a multimillionaire.
After sharing the picture of herself holding a bouquet of flowers at a wedding, Wilde received a message from a man named Asgar Patel.
"Are you Ida Moreland?" he asked, using her maiden name.
It sounds unbelievable, but in fact the pair share a surprising connection that goes back more than six decades.
Patel first met Wilde when he was only six years old.
It was just after the Partition of India in 1947, and Patel's father had sent him and his siblings to Scotland to escape the violent and chaotic country.
They boarded with Wilde's family, and became so close they called themselves her adopted siblings during their five-year stay.
Patel moved back to India as a teenager, and kept in touch by mail for a few years.
But he lost contact after her parents moved, and says he spent "years" trying to find them again.
The House of Patel
The most surprising part of Wilde's reunion with her long-lost brother wasn't the way he noticed her on Facebook.
She was stunned to learn that Patel is one of the wealthiest men in India, with a massive group of logistics and transportation businesses called the House of Patel.
While Wilde was living in Irvine, Scotland, Patel was making business deals in Dubai.
One website estimates he is worth $615 million.
And Patel is happy to share his wealth with his long-lost sister.