Operation Trinity Audiobook

" Another great addition to the series. Like Riley's style as it fits series without effort. Looking forward to more from author as series continues. "

" My 12 yo son loved the audiobook. "

" I enjoyed how we were able to get to know Grace better as well as see that the tension and uncertainty that Ian has regarding his mother began even before the clue hunt began. I am still enthralled by the fact that so many authors can write one series so seamlessly. "

" It was an exciting book that kept me wanting to read more! "

" the middle ages and the cahills guardianship of a religious treasure. "

" I was really excited when I started reading this. I was really disappointed because from page 3 to page 43, the whole story was so boring. When the author started Grace's story, it got a little exciting but eventually it got boring again. The whole book doesn't have a story at all!! I have read his rapid fire series and I was amazed by the story in it. So I thought operation trinity would be a good book. It turned out to be bad. It's a ok book. "

" This whole 39 Clues series and all of its offspring are ridiculously entertaining...and you get edjumicated on stuff too! "

" I like these books but it is getting difficult to keep track of all the series that are off-shoots from the original one. :) "

" Very scattered plot. I think they are trying to keep the connection with the currently known characters but they could just write the story with any character from history. "

" Really enjoyed listening to the audio book in the car with my daughter(8). The art and history aspects were very interesting. "

" Great I love this book and all they others listen to them all "

" I really liked reading the part about Grace Cahill. She is such an interesting character, and I want to know more about her life. "

" It is a wonderful way to learn history in an extremely fast paced story. "

" nice background on one of the secrets "

" This read is quite a head turner. The story was awesome, and how Clifford Riley connected each of the three story in one book. Another good read for the 39 Clues fanatics. :) "

" i went to read the 39 clues in grade 5 but never got to now a few years later i actually never thought that i would be reading the series. "

" Good not better than infinity ring but good "

" I love the 39 Clues series. This is just another example of how great this series can be. I'm excited that there is potential for so many new books in this series. It's great to learn more backstory. I love seeing Grace Cahill as a younger person! "

" boring, can't finish it "

" Another run off of the 39 clues series. This follows three different generations to keep some art in the Cahill circle. This is one of three books so far in this series. "