James -
Please do not do anything rash, as was suggested by the previous post. Yes, it can be VERY difficult to follow proper channels, but the reasons are just 'mildly' important. Such as, if there is an existing court order in Germany, wrongly filed or not, you will be charged with international abduction yourself. If you are lucky enough to get the child out of Germany, and of Europe, you can be extradited BACK to Germany and face criminal charges. Just think of what will happen if you are caught in their country! You think you have legal bills now?
There are organizations, some even posted on the Web, that will offer to 'counter-abduct' your child and bring her home. Of course, the cost is immense. And their methods are usually VERY illegal and DANGEROUS. This option would only be viable if the child's life was in imminent danger in the current situation. Otherwise, as a loving parent, how do you justify putting her life in danger yourself? Additionally, some of these groups have had members caught in the process and are currently serving prison terms in other countries, including Iceland, Sweden, Italy and Germany. And those are just the ones with which I am famaliar.
Having faced a very similar situation, I understand the pain, frustration, helplessness and rage of being the left behind parent. Everytime I was feeling rash or impulsive, I reminded myself of a few simple facts. First, if it was wrong, illegal, immoral, hurtful to the child for the other parent to take the child it is equally wrong for me to do the same.
Second, I need to be able to look my child in the eye when he is 15, 16, 17 years old, old enough to truly understand what is going on, and honestly state that I did nothing, absolutely nothing illegal or immoral; that I did everything in his best interests. The lesson here is that ultimate good can only be served (in my situation) by abiding by both the spirit and the moral intent of the law.
Of course, different rules would apply if my child were in imminent danger, in a war torn country, or being abused or neglected. Other situations require very careful consideration because it must be remembered that even the best, safest, most necessary counter-abduction is an incredible trauma to a child. Yes, the initial abduction was traumatic, but a second abduction would just compound the trauma.
Finally, James, you need to seriously look into counseling for the time when your daughter is returned to you. There will be many issues to deal with and having already established contact with professionals that can help guide you now will both serve your child then and you in the interim. A professional counselor can even help you handle the very delicate first moments of reunification, moments when you will be most emotional but need to be most in control of yourself so that you can help your daughter best.
Again, I wish you the best. If you have not already done so, please contact some of the organizations I have listed above. You are not alone in facing this issue and there are other's experiences that will be able to help you. It will be a fine day indeed when all of us who have been through this have no need to give the benefit or our experiences.