The Sword Thief by Peter Lerangis
The answer to the puzzle in The 39 Clues book 3 is "Marie Curie."
Card #3 comes with the 1st book of the 39 clues:The 39 Clues: Book 1: The Maze of Bonesin the book there are Cards #1, #2, #3, #4, #5, #6.
The name of the 10th 39 clues book is Into The Gauntlet.
there is no 49 clues book it is 39 clues
its P3KM69DWXP
156 pages
The title of the seventh 39 clues book is The Viper's Nest. My agent Code is P2J34GKXXP on the 39 clues website.
the name of the 5th 39 clues book is the black circle
The eighth book in The 39 clues series is 'The Emperor's Code.'
The clue is iron salute in book 1 of The 39 Clues.
there is no page clue in 39 clues book 9
Online, the second clue in the 39 clues is hydrogen. But in the second book of the 39 clues is tungsten