[x]Entomb them. Raise a defense wall in front of them with earth ofuda so that Hermione can't see what is happening. And then raise a wall behind them and at their sides to fully encase them. Silence their screams with ofuda seal as the walls squeeze them.
[x]Grab Hermione and fall back to the bathroom. Travel from there going room to room thru the walls and ceiling (using earth shape) to get to the children and shelter.