The Harry Potter author will talk about her children’s non-profit organisation Lumos on Saturday to launch its latest campaign

Harry Potter author J. K. Rowling is hosting a Facebook live chat this Saturday to discuss the work of her international children’s charity Lumos.

Streamed live on the Lumos page on the social networking site, Edinburgh resident Rowling, will be in conversation with writer and broadcaster Lauren Laverne from 8.15pm.

Viewers will be able to ask Rowling questions about the charity which works to protect some of the world’s most disadvantaged children who live in orphanages around the world.

Found a decade ago Lumos aims to return the estimated eight million children living in institutional care, separated from families and exposed to abuse, harm and neglect.

The Facebook Live event marks the start of the We Are Lumos Worldwide global campaign to raise awareness and urge people to get involved with the non-profit organisation’s work.

Questions can be sent this week via the campaign website and some will be selected to be read out on the night.

The campaign also includes a gala performance of the play Harry Potter and the Cursed Child Parts One and Two at the Palace Theatre in London’s West End on Sunday, where Rowling will introduce the play and talk about Lumos.

In November an advance screening of the film Fantastic Beasts and Where to Find Them, written by Rowling, will be held in New York.

A new limited edition T-shirt has also just gone on sale, featuring a quote from Rowling from her Very Good Lives speech given at a Harvard commencement ceremony in 2008.

A spokesperson for Lumos said: “Thanks to the generosity of J.K. Rowling and others, 100% of all public donations, including funds raised from the events in the We Are Lumos Worldwide campaign, will go directly to Lumos’ programmes helping thousands of children to leave orphanages and return to families, giving them a real chance in life.”