Kamdenboy & Kyraboo in Mystery Challenge X by pocket.watch

Kamdenboy & Kyraboo are swept into a whirlwind of challenges when a mysterious box - from an elusive puzzle master known only as "X" - lands on their doorstep!

As the siblings compete in wacky games and unravel cryptic clues, they inch closer to earning a coveted spot on X's Wall of Fame - and discovering just how deep the mystery goes.