Найти книгу: "The Case of the Test and The Twins"

Quinn is sitting in the classroom ready to take her test, when she notices that one of her classmates changed their trademark bow during recess. Not paying too close attention, she goes on to take her test. Later in the day, she hears the teacher mention to the classmate that is once again wearing the correct bow from earlier in the day that these were the best test results she has seen in a long time from the student.