Secrets of Droon. Main series

Julie, Neal, and Eric discover a tiny room under the basement stairs, a rainbow-colored staircase appears and carries them to the world of Droon -- a land of shiny red men, giant flying lizards, and a princess who needs their help.

Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their unmatched power? After a whirlwind race that's taken them across five continents, Amy and Dan face the most the difficult challenge yet- a task no Cahill dared to imagine. When faced with a choice that could change the future of the world,...

Eric's hometown is in danger when the evil Sparr comes to find the Coiled Viper which holds great power.

Hoja is a prisoner in the city of Ut, a city that comes to life once every hundred years after being magically stuck inside a tiny bottle, and Eric and his friends must act fast if they are to save their genie friend.

Eric and his friends seek the truth about a mysterious, magical snowflake from a flying blue serpent, which Ko will stop at nothing to possess.