Patrick Carman wrote The Black Circle, the 5th book in the 1st 39 Clues series.
1/2 a gram of melted amber.
The fourth clue comes with the cards in the second book. But for that matter, how do you open the fifth clue!!?? One clue comes from an ultra-rare card called "x-ray", the other clue comes from the book.
there is no page clue in 39 clues book 9
The clue is iron salute in book 1 of The 39 Clues.
Online, the second clue in the 39 clues is hydrogen. But in the second book of the 39 clues is tungsten
No but it is about to be.
39. Each book has 1 clue.
mhyr
water
water.
Aloe.
Yes