Hello celebgran, just been reading back over your story, quite similar to mine!
I've just got back from a lovely spa w/e with my other daughter, that she bought me for 'Mothers Day', had a lovely time, but still couldn't get my GC out of my head, as I miss them so much. I paid for my daughters wedding and gave them 5K, leaving me with very little savings, as I'm on my own its not a good position to have put myself in, but I did it out of love for her, and am rewarded with a brick-wall of silence.
The silence is very worrying, as I always wonder if they are all ok, one of them could be in hospital for all I know! As for going to court, I felt right from the start that he would not back-down and that going through the courts would be the only way I would ever see my little darlings again, also it would give me a link to my daughter too.
My problem is that my s.i.l is hooked on 'pot' and has been for 10yrs, this has made him paranoid, he is also a pathological liar, so God knows what he will come up with in court! When I tried to say 'hello' to my GC after 'mothers day', he told my son I tried to 'snatch' little Laila!! which of course I didn't. My s.i.l has also turned my son against me and my eldest daughter with his lies, I cant believe my son would believe him, but seems he does! My son and I are now not talking, so he therefore only hears the lies.
Your story doesn't sound good celebgran, after 4yrs, so very sad