We're back. We're getting everything worked out.
Rachel is fine. She's tired (but, then again, so am I). It's strange seeing my sister so pregnant. Despite the circumstance, we've had a good time getting to know one another again. Now the hard stuff begins.
How did this go down? After my post asking for anyone who had resources, I was directed to call a woman's shelter in my sister's area. They got in touch with Rachel and put her in a safe place. Between my brother, and a very nice woman who reads here who had some frequent flier miles to transfer, and others, we had enough to fly me out to pick her up and drive her back here. Another reader has a sister who does family law and she's agreed to help us with the next steps probono. All we'll have to cover is filing fees and basic things. Rachel is meeting with an adoption agency today.
I feel like this is going to work out for the best.