The Mysterious Benedict Society and the Prisoner's Dilemma by Trenton Lee Stewart is the third book about a group of four extraordinarily gifted and adventurous children who call themselves the Mysterious Benedict Society.
Since this is the third book in the series, I won't say much here about the plot. I've enjoyed all three books, and while the first will always be my favorite, I think Prisoner's Dilemma is the second best. I enjoyed that they were back home at Mr. Benedict's mansion for most of this one, and the action built up nicely.
The MBS books in general are fabulous - they have it all: great characters, illustrations that are a bit Gorey-esque, a formidable group of bad guys, logic puzzles, brain teasers, and pie.
This series is outstanding, and is a perfect gift for kids (boys or girls) from about 5th grade through 9th. It's also a series that adults who enjoy YA & kid's novels will love too; my mom and many of my friends have read and loved them.
For anyone wanting to give this series a try, I recommend starting with the first book, The Mysterious Benedict Society, which is available in paperback from The Book Depository for only $3.49.

[this is good] Is today review day for you?
I love these books. I hope there are more.
Posted by: Michelle | 11/01/2009 at 08:37 AM
I wish today was review day. Have a lot of other stuff to do, but I hope to get another review up today. Lots of reviews post. :)
I am making a lot of progress moving posts over though. This morning I made it to 2009. :) So 104 posts to go.
Posted by: Emily | 11/01/2009 at 01:34 PM
Good job. You'll definitely be ready by the new year.
Posted by: Michelle | 11/01/2009 at 03:14 PM
I'm actually hoping to be done by the end of this week. :D We'll see how I do.
I'm working a lot on my facebook page and getting antsy to launch my new blog so I can sync them up.
Posted by: Emily | 11/01/2009 at 03:19 PM
[this is good]
Nice review! I liked the lines 'a formidable group of bad guys, logic puzzles, brain teasers, and pie' :) Makes me want to get started on the book now!
Posted by: Vishy | 11/01/2009 at 11:20 PM
I read the first book, I'll get to the second one eventually.
Posted by: Jennifer | 11/02/2009 at 10:51 AM
Thanks for the tip. It's now in my queue at the library!
Posted by: Tryphaena | 11/03/2009 at 08:18 AM
[this is good] I finished this book a couple of weeks ago. I love it too! This series is great, especially when you need a break from adult life :o)
Posted by: Kristie | 11/03/2009 at 06:00 PM