Although set many thousands of years before the events recorded in Ocellus: The Story of the Twelfth Stone, Moebius: The Story of the Eighth Stone is the second book in the Ocellus series. It is an epic fantasy-adventure aimed at age 14 upwards.

Amber, a feisty and resourceful girl of 15, leads a simple life in her remote village within the forest principality of the planet Splenem. While climbing to the top of a tree as a dare, she finds a glassy-black, oval-shaped stone with a Moebius ribbon engraved on one face. Wondering who would hide such a stone high in a tree, she takes it. After climbing down, she is confronted by Septies, a friendly alien who says he has searched for the Moebius stone for trillions of years. He tells her evil shapeshifters (the KimMorii) stole and hid the stone and will know it has been discovered. He warns her the KimMorii will soon invade and if they take the stone from her by force, she will die.
Although Amber is willing to give the stone to Septies, he says he cannot yet take it back to his universe. Instead, he tells Amber she must secretly take the stone to Eldern Castle, the Splenem capital. Amber reluctantly sets off into a terrifying world of dark forests, gruesome beasts, giant castles, and flying horses. At Eldern Castle she becomes close friends with other young messengers. Here they are taught close-combat fighting and how to deploy telepathy in battle. She develops a close relationship with Peol, the brother of a messenger, which causes friction within the group.
Will Amber's wit, guile, and fighting skills be enough to save her from the KimMorii? Can she and Peol guard Moebius until Septies can retrieve it? Moebius is huge in scope and deep in emotion and takes the reader into alternative universes, dramatic battles, and doomed relationships