God Bless You. Best wishes and prayers for you and them. I can't imagine the circumstances leading to this were fun.
It’s not as bad as you might think. Their folks split up years ago and Mrs 40 and I took them in what we thought would be a temporary arrangement. They were 8 and 10 at the time. It turned out to be not so temporary but we have no kids of our own so we’re good with that.