Jesus Christ! What a coincidence? He just randomly hired a craftsman and he hired a neighbor of the witch? Apparently, the craftsman seemed very familiar with Anna. Otherwise, he would not be able to recognize her in an instant. Roland turned his head and looked at Carter Lannis, who immediately understood Roland's thoughts. Carter quickly locked the door, blocking the only exit.
In the same chapter the father said the girl was 5 years old. So i think author just forgot that detail. Else younger sister?
Also MC looks changed due to his cultivation level so the mother may not recognize him.