What are the thirty nine clues?

Answer 1

The 39 Clues are the source of the Cahill family's power and the key to the series.

-You can get 1 Clue from each of the 10 books by adding the cards from that book to your gallery in My Cards. Enter the code printed on any of the 6 cards to add all 6 of them to your gallery.

-You can get 1 Clue by playing each of the 10 Missions and 1 Clue from Mission 0: Agent Training. You can also get these Clues by completing Card Combinations.

-You can get Clues by completing Card Combinations. To complete a Card Combination, you just need to add the right cards to your Gallery. This will give you Clue and show how the Cards are related. To see which cards are in each combo, click on the "Combo" button in My Cards and click on a Combo number. 10 of the Combination Clues can also be completed by playing Missions.

You can view your Clues and see which Clues are available. You can view them by clicking on "My Clues."

Answer 2

The 39 Clues is a multimedia adventure book series that follows siblings Amy and Dan Cahill as they search for the 39 Clues left behind by their wealthy and powerful family. The series includes 10 books, card packs, and an online game where readers can collect clues and solve puzzles alongside the characters.