She was among the first Britons to join the terrorists of Islamic State and regularly takes to Twitter to issue violent threats, including one in which she spoke of her wish to become the first woman to behead a Westerner. But despite all that, Khadijah Dare's heartbroken mother Victoria has used her first ever interview to call upon her daughter to return and says she wants her only child in her life. Mrs Dare,  from Lewisham in South London, also revealed that her daughter had been an equally devout Christian as a child but turned to Islam while at college. Scroll down for video . Plea: The mother of jihadi bride Khadijah Dare (pictured) has issued a plea for her to return home . 'She loved church,' said Mrs Dare in an interview due to be screened tonight as part of a BBC documentary. 'She had a Bible, she read the Bible. She would sit there and pray and pray and pray.' Dare, who was born in Nigeria but emigrated to the UK as a child, was originally christened Grace but, says her mother, the 22-year-old changed it after she began attending services at the Lewisham Islamic Centre - a mosque also linked to the Lee Rigby killers. 'When she became Muslim, I would get these phone calls saying, "Can I speak to Khadijah?" I said to her, what's that about? She says, "Oh, that's my name". It was only the mosque people who called her Khadijah. I don't call her that.' Now living in Syria, Dare, who married a Swedish IS terrorist calling himself Abu Bakr almost as soon as she arrived, has reportedly been widowed. Threats: Dare, who is in Syria, is notorious for threatening to become the first woman to behead a Westerner . Radicalised: Aqsa Mahmood, who calls herself Umm Layth, also appears on BBC2's Britain's Jihadi Brides . Exposed: Mahmood's identity was exposed following a MailOnline investigation . Nevertheless, she continues to spread IS propaganda online and has been accused of encouraging other young women to travel to the Middle East, much like fellow British jihadi bride Umm Layth. Umm Layth, who was unmasked as a Glaswegian teenager named Aqsa Mahmood last year following a MailOnline investigation, has even offered advice to would-be jihadis on what clothes to bring and what they can expect from life with IS. But her family's lawyer, who appears on BBC documentary Britain's Jihadi Brides alongside Mrs Dare and Renu Begum, sister of one of the three missing Bethnal Green schoolgirls, says the reality is very different. 'There's nothing loving about them and there's nothing religious about them because they are ripping the heart out of our communities,' says Aamer Anwar. 'They are like paedophiles. They are groomers. They are getting their claws into people and ripping them away from the families who love and care about them.' Mahmood, who, say her family, was once a 'kind, caring individual' and a 'loving young woman', is now helping to radicalise would-be jihadi brides herself, as well is issuing threats and encouraging Muslims to take up arms. 'Follow the examples of your brothers from Woolwich, Texas and Boston,' read a tweet posted last summer. 'If you cannot make it to the battlefield, then bring the battlefield to yourself.' Another blog post claimed that within two generations, the world would be under the heel of an 'Islamic Empire'. 'Know this Cameron and Obama, your countries will be destroyed and your kuffar [non believers] beneath our feet,' wrote the 20-year-old. 'If not you, then your children or your grandchildren. This Islamic Empire will be known and feared worldwide and we shall follow none other than the law of the one and only Allah. Gone: One of the older female recruits is Kent benefits claimant Sally Jones, 45 . Recruiter: Now using the name Sakinah Hussain, she was caught trying to recruit jihadi brides last autumn . Widowed: Zahra Halane (pictured) and her sister Salma have both been widowed since joining IS . 'This is a war against Islam and it shall be known that you're with them or with us. So pick a side.' Dare and Mahmood are among the 22 British women known to be in Syria but police believe there could be another 40 whose disappearances have not been reported. Those who are there include Zahra and Salma Halane, the Manchester teenagers who have become known as 'the Terror Twins' and 45-year-old Sally Jones, a benefits claimant from Kent who now goes under the name of Sakinah Hussain. 'What they fail to understand is that they've been brainwashed by someone's ideology which is not the same as Islam,' says former radicaliser Yasmin Mulbocus. 'These women need to wake up. They need to discover the real sisterhood of Islam. They need to start questioning. They are brainwashed so bad, they've lost their own soul.' Anwar agrees. 'The best way to defeat radicalisation is to find the ex-radicals and find out what changed them. 'You're [would-be jihadi brides] told that you are going to the Gates of Paradise but when you get to Syria you will find out what Hell is really all about. Because it's there. It's happening now.' As for Dare, she says she will never return home, despite her mother's pleas. 'I want you back, that's what I said [to her],' says Mrs Dare. 'I want you back in my life. She is the only child that I have and the Devil took her away from my life.'
Grace Dare, who now uses the name Khadijah, is with ISIS in Syria . Her heartbroken mother Victoria, from Lewisham, has spoken for first time . Has issued a plea for her daughter and grandson to come home . Says Dare was a devout Christian as a child and 'loved to pray' Her daughter has become a terrorist poster girl and regularly issues threats . Dare has said she wants to become the first woman to behead a Westerner . Her Swedish husband Abu Bakr has reportedly been killed . Britain's Jihadi Brides, tonight at 9pm on BBC2 .