The coven of witches is dancing and cackling in the water. They have a hose-pipe and they are spraying each other's naked bodies, squealing and laughing. One of them comes up to me, wearing a worn-out Barney the dinosaur T-shirt, and splashes some water at my face. I am in a children's home, Chez Mama Coco, an hour's drive from Kinshasa, and the place is filled with starved witch-children who have been thrown out by their parents for displaying signs of being under the influence of Satan. Some have been burned and slashed, and some mutilated. One of the workers introduces me to a child - they do not know his name because he has not spoken since he arrived, but they call him Fidel - and tugs down his trousers. Where his penis once was, there is nothing but an angry red scab. "His mother cut it off during the exorcism," he says.
This is another consequence of our war. Herve Cheuzeville, the outgoing Head of Mission for Warchild, explains: "The idea of withcraft has always existed in Congo, but it is new to accuse children of it. It never happened before. It is a result of the terrible traumas of the past six years."
The Combat Spirituel church in Bukavu consists of an immense veranda filled with benches, with a neat white building attached. These churches have been pioneers of Congo's 21st-century witch-hunts, and when I arrive at their Sunday service, they greet me with whoops and hallelujahs. The evangelical preacher at the podium has a kind of Christian Pan's People dancing behind him, and he exclaims: "We salute God by dancing!" The congregation contains over 1,000 people, and they look more like the crowd at a football match than at a dreary Church of England ceremony. They blow whistles, jump up and down, and dance wildly. A man with a miraculous story about how he was cured of Aids through the power of prayer takes to the platform. I am told that if I want to talk witchcraft, however, I need to return late on Thursday, when the purgings and exorcisms happen.
I come back, and Papa Enoch Boonga - the "spiritual co-ordinator" - is waiting for me with a 14-year-old witch. I am led into the little house. The lights are switched off, and Papa Enoch produces a lantern that lights his face and casts a long shadow. In his slow, rhythmic French, he begins to tell me how: "Satan is waging war on the Congolese people. He comes to kill and hate. The answer to Satan's campaign against us is spiritual combat." That is his cue to drag out Clarice. She is a small girl wrapped in a big woollen cardigan. In a low, blank rote, her eyes cast down, she says: "I was taught sorcery when I was 12. My grandmother turned me into a witch by giving me a doughnut to eat."
Enoch looks at me triumphantly. "This is how it works! They give evil food!" He takes over from Clarice's halting speech. "Then the grandmother came at night in spiritual form and said, 'I gave you the doughnut to eat, now you must give me your little sister to eat.' She was so frightened she said, 'OK, OK,' and the next day her little sister fell ill and died. Then her grandmother demanded she break the leg of her mother, so when he mother was out gathering wood, she fell and broke her leg. Now the girl started to feel the power of sorcery and began to transform herself into a dog or a cat."
I keep looking at Clarice in disbelief, but then I realise she thinks I am glaring in condemnation and I look away. As Enoch speaks, the chanting behind us from the main service is getting louder and louder - "Out Satan, out!" hundreds of people cry, clawing at invisible demons in the air. He continues, "Her father is an artisinal miner and he stopped being able to find anything because of her sorcery. They fell into poverty."
I have to interrupt. I ask Clarice, softly: "Do you really think it is your fault your little sister died?" "Yes," she says. Her eyes remain fixed on the floor. "It was actually her parents who realised she was a witch," Enoch says. "They were very worried about their lives going bad, and they went to church and prayed and God told them what the problem was." He says they conducted an exorcism of Clarice, and, yes, it was tough. "When you cast Satan out, you almost destroy the person, but they come back with Jesus Christ in their heart."
As I look into Clarice's downcast eyes, I realise it is not only the physical landscape of Congo that lies in ruins. The psychological landscape has been trashed. The war has left girls like her in a society littered with superstition landmines that will not be cleared away for decades. She limps away, back to a life soaked in self-hate.
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