By not following thru on the 911 call, he has now been given the power once again. The abuse will esculate.
I would follow the others advice, time to think on your feet.
Are you still moving and starting your new job in mid August? I ask that, as I believe your orginal plan was to leave the children with your husband....that has been a concern of mine, now it really make me nervous.
Protect yourself, protect your children.