I have been reading this series aloud to my 7 year old son and he is hooked! We are really enjoying learning about all different kinds of codes. Read morePublished 2 months ago by Short Family
I haven't read any of the books, but Penny Warner came to my school and talked about the book and spy stuff. I really want to read the book!!!Published 4 months ago by Puja S.
this book was great and really challenged my thinking on the codes and hidden messages. It definitly was one of the best books i've ever readPublished 7 months ago by D&B DeHoust
Fun series for kids! They'll love the mystery and enjoy breaking the codes!Published 7 months ago by Camillet25
Our 8 yr. old grandson was sooo into Sponge Bob books, this book broke him out of his niche and forced him to read more advanced material --- of which he's capable. Read morePublished 7 months ago by L. S. Driskell
My 8 year-old son loved it. It is a very short reader with option to staying with the series.Published 11 months ago by Ayako Matsumoto
Great book, what I really like about this series of books is that it really draws the reader in and continually keeps them thinking right up to the last pages. Read morePublished 11 months ago by Nana244now