The 39 Clues Wiki
The 39 Clues Wiki

This article is about a real-world person, place, or thing. For more information, see the corresponding Wikipedia page here.

Phosphorus is one of the 39 Clues that make up Gideon Cahill's master serum. On the 39 Clues Website, agents can obtain this clue through Mission 1: The Lost Clue.


When Anne Cahill, an Ekat and holder of a Clue, survived the shipwreck of the Titanic, her branch thought of a way to keep the Clue even safer from other branches. She obeyed the orders, then she changed her named to Nella Chain to throw other Cahill members off her track and moved to America. She never saw her parents again. But then she caught the eye of a neighbor, George McClain (a Tomas), so she knew she had to move with the Clue. Angry at the Ekaterinas for keeping her away from her parents, Anne contacted Amy and Dan's grandmother, Grace Cahill, to borrow one of her planes so she can fly herself with the Clue back to her hometown in Scotland. Then disaster struck--her plane crashed into Loch Ness, taking her and the Clue with it, and was never heard from again. When the Ekaterinas heard of the disaster, they ordered Ekat Charlie Wallace to guard the Clue with a Loch Ness monster robot they built. The Clue remained underwater safely for ages until it was found in Mission 1.


The scene first shows a plane crashing headfirst into the lake. Next, in the lake, the camera sees the plane sinking and a strange white object with the word 'PHOSPHORUS.' It zooms in on it, leaving only the word accompanied by bubbles.

Card Combo[]

Card4 Card5 Card15 Card27 Card49

About Phosphorus[]

Phosphorus is a lumenescent chemical element.

Phosphorus (diff

Diff colors of Phosphorus


The Phosphorus Symbol

Red Phosphorus

A jar of red phosphorus


The 39 Clues Clue 13