Katherine was just reading Marta's last reply when she heard the knock. Great. Asking her father for a DNA probe - what a fun conversation that would be. She doubted he would say 'yes' but then she had doubted that she would ever exchange a friendly world with him a couple of months ago.
The worried look was replaced by a firm smile the moment she opened the door to greet her friend. "Hey!" she said, not as enthusiastically as she might have done if Charlie hadn't been asleep. From what she had gathered, the young boy had already caused enough trouble for one day. No need to disturb his peace. "You can put him in the living room," she mouthed. They could go to the kitchen until Charlie returned from the land of the sleeping.