The 39 Clues Wiki
The 39 Clues Wiki

Worlds Collide was a month long Scholastic multi-platform event featuring the series The 39 Clues, Infinity Ring, and Spirit Animals that took place during April 2014. The online Worlds Collide Forum is here . During the event, a digital fan fiction book and e-bundle was released, a live author tour took place around the country, exclusive content were unlocked, and a fourth 39 Clues series announced.

Worlds Collide: Tales from an Awesomesauce Party[]

Fans participated in three prompts for a crossover between the three series. Fan's responses were then edited by Mallory Kass (39 Clues editor), Nick Eliopulos (Infinity Ring editor), and Zack C. (Spirit Animals editor) into an e-book released as a PDF on the forum called Worlds Collide: Tales from an Awesomesauce Party.


Fourth 39 Clues series[]

During the Worlds Collide tour in New Hampshire, the fourth 39 Clues series, Doublecross, was announced for the first time.

Card 496


An e-bundle of The Maze of Bones, A Mutiny in Time, and Wild Born was released as the Powerpack.


Card 496: Worlds Collide was released, with the code GOLDTILDA2. The challenge was:

Clue 1: This serum clue was discovered in The 39 Clues Book 3: The Sword Thief. It also makes for beautiful jewlery! Clue 2: Crack the code and spell out the name of the evil SQ leader! TRIFLSDHA Hint: Try reading every other letter!

Clue 3: The Greencloaks meet the Great Beast Rumfuss in Spirit Animals Book Number?