When Marietta heard her fireplace flare up, she knew that there were only a handful of people it could be stepping out of that floo. Who it was, though, was not who she expected. She had not expected Zacharias would be by for a week at the very least so she hadn't even bothered to lock him out.
She didn't remove herself from Roger's lap, she only looked tiredly at Zacharias, annoyance written on her face. "I'm sorry, Zacharias, I don't remember extending an invitation out for this to be a threesome. If you don't mind returning later, we can deal with your inability to send an owl before you arrive in someone else's home then."