Any legal way out of this international abduction case (in Schengen area)?

Some of you may know about this already, some don’t. The short version is that my daughter was kidnapped last Christmas. She ended up with some people, including her mother, who are holding her hostage for a variety of reasons. The mother does NOT have custody, but nobody seems to care.

The update yesterday is that, after months of delay, the judge did not want to make a decision, and allowed my daughter to stay (illegally) with the mother. He did not award her custody, he just didn’t arrest her.

The real problem for those of you thinking “come on, you’re making a big deal out of this, your kid is with her mum, so loosen up” is this: not only does the mother’s side admit to molesting my child, but they claimed yesterday that, as a result of kidnapping her, she has developed a phobia towards them, and that they “need” to take her to see a psychiatrist, which she has been doing regularly for the past 4 months. This was a happy child that laughed the whole time. Now even they are admitting that she’s depressed, but won’t give her back.

I do not want your sympathy, even though I appreciate how much I got here on fluther all these months. I do not even expect people to agree with me, or look at the moral perspective of this.

But since various laws have been clearly broken and it seems that the new trial (due next month) will be postponed again, and I cannot see realistically regaining full custody for at least another couple of years, are there any other ways of solving this legally?