The letter is dead
Lost in the art
Worms, snakes, and periwinkles
The geographer's box
The man on the wall
A halloween surprise
The blue ones
Inside the puzzle
Tea at four
X the experts
Murder and hot chocolate
A morning in the dark
What happens now?
A bad fall
The shock on the stairs
Looking and seeing
From the critics
AgeAdd Age Suitability
maroon_cobra_70 thinks this title is suitable for between the ages of 6 and 7
joycemas thinks this title is suitable for between the ages of 8 and 12
Orange_Cat_155 thinks this title is suitable for 11 years and over
Nina_ thinks this title is suitable for 8 years and over
SummaryAdd a Summary
When a book of unexplainable occurences brings Petra and Calder together, strange things start to happen: Seemingly unrelated events connect; an eccentric old woman seeks their company; an invaluable Vermeer painting disappears. Before they know it, the two find themselves at the center of an international art scandal, where no one is spared from suspicion. As Petra and Calder are drawn clue by clue into a mysterious labyrinth, they must draw on their powers of intuition, their problem solving skills, and their knowledge of Vermeer. Can they decipher a crime that has stumped even the FBI?
Calder and Petra are 6th graders in Chicago. Petra loves words; Calder is more comfortable with math and puzzles (like the pentominoes he carries with him everywhere). Three anonymous letters, a mysterious book, and a stolen Vermeer painting make Calder and Petra join forces. They work together as clues and puzzles lead them further into the mystery. Readers are encouraged to work out the puzzles (decoding messages, math puzzles, etc.) along with Petra and Calder.
NoticesAdd a Notice
There are no notices for this title yet.
QuotesAdd a Quote
VideosAdd a Video
There are no videos for this title yet.
Find it at NYPL
Buy It Now
Support your library, keep it forever!View Purchase Options Learn more about this program
Hello! We noticed you have the following items in your cart right now:
If you'd still like to purchase the items you have in your cart, you can do that now.
You'll be able to purchase your eBook after you have checked out your current cart.
To continue with your eBook purchase immediately, you can clear your cart by clicking below.
All items will be removed from your cart.
I'd like to keep browsing! I'll decide later.