The 39 Clues Wiki
The 39 Clues Wiki

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To earn this Clue, you must complete Mission 0: Agent Training.


The Uranium Symbol


So many planes disappear in the Bermuda Triangle, because a Clue is heavily guarded by its branch in a stronghold. Marie Curie, an Ekat, discovered the Clue.



The 39 Clues Clue 11

The scene first starts with a radar screen with yellow planes and boats and the Bermuda Triangle. A chunk of uranium appears on the radar. It starts beeping with the green circles, and the word URANIUM appears, along with the radar's green line.

Card Combo[]

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About Uranium[]

Uranium is a radioactive element, is number 92 on the Periodic Table of the Elements. It is highly radioactive. Uranium is used as the main ingredient in a nuclear bomb.

Uranium rock
Uranium Ore

Uranium Ore