In general, I like how the writer uses simple writing style that suits the reader's age, and at the same time provides a simple mystery. 
 In the Pillowcase mystery, Nate the Great asked the right questions and followed the right threads, yet he was somehow misled. His investigations excluded all the suspects, and the only way to solve it was to try and look at the facts from a different point of view. The ending was unexpected-as usual-for the pillowcase turned to be the laundry bag or that what someone thought! 
 What I did not like about this book is that some lines were unnecessary. They provided a reading material, but they made the events run slow. Also, no clues were given for the reader that would help them solve the mystery or expect the ending.