Robin Hood shares a prophecy thousands of years old, and the children must decide to answer the call, or not. Will they leave earth behind to search out something they can hardly believe?

Robin Hood introduces the children to his life's work, his greatest creative endeavor...is it a ship, or a work of art? And just when they think their plans are working....the enemy strikes with intent to destroy everything.

The moon base is attacked! Slugger, Flint and Scout must follow Robin Hood's every step or all will be lost. This proves a challenge when the dog melts into a blob of goo.

A discovery changes everything as the truth comes out in more ways than one. Robin Hood isn't what he seems, nor are the children.

After a ride on the tallest elevator of their lives, and a moon-feast of epic (and disgusting) proportions - Slugger, Flint and Scout grow closer to discovering the truth of who they are.

After a shocking revelation, the sibblings find themselves trapped underground on the moon. Robin Hood is nowhere to be found, and something lurks out in the darkness.

Leaving earth behind, they discover something unbelievable - reality is not at all what it seems.

Robin Hood is found! But is this talking dog a kidnapper or friend? Either way, he gives them one last chance to talk to their father.

Dark waters swallow them whole and all seems lost. But when a light appears out of nowhere, thus begins the most unexpected turn of events imaginable.