When seven members of their family were kidnapped, thirteen-year-old Dan Cahill and his older sister, Amy, got ready for the fight of their lives. But their enemy, a terrifying group known as the Vespers, remained frustratingly elusive. They stay in the shadows, picking off Cahills one by one. And now the Vespers have landed their most serious blow yet - a blow that strikes at the very heart of the Cahill family. Because Amy and Dan discover that there’s a Vesper mole in their innermost circle. Amy and Dan need to smoke out the traitor before the next hostage dies. They have just days to discover who has their back . . . and who wants to sink a knife into it.
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"Definitely made up for the last installment - probably the best in this part of the series! What a cliffhanger. I don't know if I can wait for the last one!"
— Devin (5 out of 5 stars)
" I thought that this could've been better, seeing how she wasn't bad in the first series. But the pairing of Jake and Amy- terrible. I'm not a fan of it because I don't think he ever should've existed in this world. I feel like something bad is going to happen in the next series. "
— Amy, 2/20/2014" A set up for the next book. Number 5 was okay. It seemed like more drama less story. I'm hoping for some answers in the next book. "
— Kevin, 2/3/2014" Seemed a little short actually. Almost like a filler book just to reveal a few facts to set up the finale. "
— Jim, 1/31/2014" EPIC! I CANT BELIEVE THE MOLE WAS HER!!!! (trying to avoid spoiling) "
— ₵î௹៛, 1/14/2014" The series took a much better turn in this book and I am looking forward to reading the last one. I was getting disappointed by the plot of Shatterproof, but now the story seems to be getting quite interesting. "
— Red, 12/12/2013" Great, as always! Can't wait for the next one! "
— Vicky, 11/4/2013" AAAAAAAAAAAAAAAAAAAAAAAAHHHHH! XD I HAVE TO WAIT TIL MARCH FOR THE NEXT ONE?!?! "
— Star, 7/31/2013" Still one of the best children books ever!! "
— Madison, 6/30/2013" Can't believe Sinead is the mole, so sad that uncle alistair died! "
— Joshua, 4/20/2013" has great dramatic ending "
— Frances, 3/24/2013" BEST.BOOK.EVER!!! Ugh but I can't wait till march 5!! Ugh "
— Katie, 2/10/2013" it got to be too boring in parts.. although after that ending I can't wait for number six!!! (: "
— Treyson, 1/16/2013" One of the most exciting of the series yet, with brilliant character development to boot. "
— Cherry, 1/8/2013" The Cahills vs Vespers is every bit as good a series as The 39 Clues. What fun books for kids. "
— Debra, 10/15/2012Linda Sue Park is the author of the Newbery Medal book A Single Shard, many other novels, several picture books, and a book of poetry.
David Pittu, a two-time Tony Award nominee, has narrated dozens of audiobooks, including Donna Tartt’s The Goldfinch, which earned two prestigious Audie Awards for best narration. He has also won three Earphones Awards. Well-known for his work in theater, he has appeared off-Broadway in LoveMusik and Is He Dead, for which he received his Tony nominations, as well as Parade, for which he earned a National Broadway Award for Best Actor in a Musical. He is also a writer, member, and director of the Atlantic Theater company.