Appears In:Frankenstein's Secret Card Combo
Location:United States of America

This is the only combo that can only be made by Cards in different Card Packs.


Janus writer Mary Shelley wrote the novel Frankenstein and hid the Clue in the novel. The book was put in the Janus Hollywood stronghold but no one was creative or clever enough to solve the puzzle.
Crystalline Iodine

Crystalline Iodine


Iodine can be unlocked by completing " Frankenstein's Secret" Combo:

Card 13- Secret: Frankenstein

Card 85- Location: Keats' Grave
The 39 Clues, Clue 1700:34

The 39 Clues, Clue 17

Card 184- Secret: Lord Byron's Death

About Iodine

Iodine is a chemical. It is used for antiseptics. It can also purify water for drinking. It is also used in salt sometimes.

Iodine Symbol


The scene first shows the book. It opents to a page to show the title and the picture. Then, on the next page, a drop of ink makes the text dissappear, leaving a few letters that spelled 'IODINE' with the crest.
Providone Iodine solution by Polylab.
Iodine Chemical Make-up

Iodine Chemical Make-up

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