Jamie Bartlett, host of the hit podcast The Missing Crypto queen, is back with another gripping, investigative serial.

In his new series, Jamie tells the story of Megan Bhari, an inspirational 16 year old girl who in 2012 launches a charity to grant wishes to seriously ill children. The charity is called Believe in Magic and it attracts the support of the biggest boy band in the world: One Direction. Believe in Magic soon becomes a household name in the child cancer community, putting on parties, sending thoughtful gifts and organizing trips to Disney. Megan is adored by all those she helps and is given an award by the then Prime Minister David Cameron.

What’s even more remarkable is that Megan is herself extremely unwell. She announces that she has been diagnosed with a brain tumour. She raises money online for life saving treatment in the United States.

But a group of internet sleuths start to suspect that Meg isn’t ill at all. When they discover Megan is in a Disney resort rather than a US hospital, they decide to hire a private detective to prove Megan is faking her illness–and expose the truth to the world. But events take an unexpected turn. And the internet sleuths-who are all parents of seriously ill children themselves-begin to wonder if they've got it all wrong. "It wasn't meant to end like this," says one.

Author Jamie Bartlett and producer Ruth Mayer investigate the truth about Megan Bhari, tracing back over the sleuths’ incredible discoveries, meeting Megan’s old friends and supporters, and exploring the medical profession’s most mysterious condition. After months of investigation, Jamie and Ruth discover a secretive investigation into the truth about Megan’s medical condition. The conclusion is shocking–and will have far-reaching consequences for everyone involved.

Believe in Magic is a BBC Studios production.