Rodolphus scratched his ear as he heard the somewhat defiant tone through the woman's fear. Feisty was the word he would have likely used.
Shaking his head he smirked as he looked at her. "Oh you're merely here to ensure that I have secured some... not negotiable collateral."
"I had always thought Marcus was a bit of a fool, you know. Now I realise he truly was a fool, albeit a rather sneaky one." He let his gaze linger on the Muggle's form. She was certainly not unattractive, but Marcus should have done what many have done before him. Use her, then dispose of her. She was, after all, nothing more than a mere muggle.
"Do not fear. If your son loves you as much as you suspect, then you will not be mistreated." With a flick of his wand, the simple cot in the dungeon became a simple, yet comfortable bed, and a steaming tray of food, and a pot of tea was set up on a table set with a white linen cloth and silver cutlery. A selection of classic novels appeared on the end of the bed - she would certainly not want for anything to read during her stay.