"I'm really worried too about what's going to happen next. I can't imagine FOO accepting six months. Even while Dad was here, he was pushing really hard to know where DD's new school is. DH said he's going to take in a picture of NM and Dad and warn DD's teachers not to let her go off with them should they turn up. I've been meaning to do it for months, but I'm just so embarrassed. Still, I think it's necessary, what with the way Dad was talking. And DH and I both remember the way NM threatened to snatch my niece from daycare."
Kay, don't be embarrassed. When my son started at his new after school club, I made an appointment, took a deep breath and explained the situation to the lady that runs the club. I told her about the false accusations my mum had made over the years, the child protection enquiries she'd initiated, the sexual abuse I'd endured at the hands of her husband and of my worries that she would do this again when she found out where I was living (and I knew from friends and neighbours that they were making extensive enquiries about his whereabouts). She was really understanding and supportive and to this day they've been absolute rocks and have helped us no end (and eventually she confided in me that her family are quite similar).
It's not as uncommon as you think, there are all sorts of disputes involving children and you can bet that your kids won't be the only ones who've had parents go in asking the school to make sure x, y and z don't get too close. Generally schools are quite hot on confidentiality and things like who can take the children out of school, but reiterating it will put your mind at rest and make the school staff extra vigilant. You can even have a password that only you and your DH know, that way if you need someone to pick the kids up in an emergency you can tell them the password so the school know they're okay to take them. Do whatever you need to to make you feel safe. Your safety and the safety of your kids is paramount, whether it's physical, mental or emotional. You have a right to feel safe and secure - you've just been made to feel that you don't. Hope you and your lovely babies (and DH of course!) are all doing okay xx