Andi to the rescue
(Book)

When Andi's teacher gets sick, Andi's mother becomes the substitute teacher. When two outlaws kidnap Andi and her mother after school in a case of mistaken idtntity, they can't tell the kidnappers they've made a mistake without putting themselves--and possibly others--in even more danger. Now they are being held in a remote cabin until her mother can teach the man in charge how to read--and he's willing to go to any length to make it happen. Andi must escape and find help--but can she lead a rescue party back to her mother before the outlaws take her and disappear forever?