What are The 39 Clues book clues?

Answer 1

The 39 clues is about the Cahill family which is the most powerful family in this world. They have the power to rule the world. The 39 clues is a hunt for the 39 clues that can make a person the most powerful person in the world.

These books have cards with unique codes that can be used in the hunt for the 39 clues on the official website.

Answer 2

Missions:

• Mission 0: Agent Training--------------------Uranium
• Mission 1: The Lost Clue---------------------Phosphorus
• Mission 2: The Emperor's Secret----------King Cobra Venom
• Mission 3: The Lost Diamond---------------Zinc
• Mission 4: The Lucian Fort-------------------Clover
• Mission 5: The General's Clue--------------Lead
• Mission 6: The Mad Scientist's Clue-----Mercury
• Mission 7: The Frozen Secret--------------Magnesium
• Mission 8: The Desert Sabotage----------Silver
• Mission 9: The Cliffhanger Clue------------Mint
• Mission 10: End Game------------------------Madrigal Status
• Mission 11 : Behind Enemy Lines---------5 Replicator Cards

Books:

• The Maze of Bones-----Iron Solute
• One False Note----------Tungsten
• The Sword Thief----------Gold
• Beyond the Grave--------Myrrh
• The Black Circle---------Amber
• In Too Deep----------------Water
• The Viper's Nest----------Aloe
• The Emperor's Code-----Silk
• Storm Warning------------Mace
• Into the Gauntlet---------Serum Formula
• Vespers Rising-----------Unlocks Mission 11 titled 'Behind Enemy Lines'.

Cards:

• The Founding Fathers Card Combo ----- Honey
• Cahill Collision Card Combo --------------- Hydrogen
• Madrigal Temple Card Combo ------------ Pepper
• The Wild West Card Combo -------------- Wormwood
• The Madrigal Stronghold Card Combo - Barley
• Secrets of the Deep Card Combo ------- Quartz
• The X-Ray Clue Card Combo ------------- Copper
• Buried Secrets Card Combo -------------- Vinegar
• The Lost Clue Card Combo----------------- Salt
• New York Subway Card Combo ---------- Rosemary
• Frankenstein's Secret Card Combo ------Iodine
• The Desert Mystery Card Combo ------- Calcium Carbonate
• The Mountain Challenge Card Combo -------- Cocoa
• The Mad King Card Combo ----------- Pearl
• Eiffel's Secret Card Combo ---------- Blood
• The National Palace Card Combo --------- Platinum
• Sandstone City Card Combo ----------- Lily

Answer 3

All book codes are different.