Does a man's divorce of his wife count if he was forced into it by her threat of Khul', and then it was later discovered that she was enchanted?

Not every threat to the husband is considered coercion that prevents the divorce from taking effect. Rather, valid coercion is that which makes it highly probable that severe harm will occur, such as killing or severe beating. For coercion to be valid, the coercer must be capable, and the coerced must highly expect the threat to be carried out, and the harm must be significant. A wife's threat to file a Khul' (divorce initiated by the wife) case is not considered coercion. Therefore, the divorce has taken place. If this divorce does not complete the three divorces, the wife can be taken back before the expiry of her 'iddah (waiting period).