When Seth, a young solicitor, befriends an elderly man at the coffee shop they both frequent, he has no idea that his life is about to change forever.

The old man gives Seth an ancient puzzle box, and as Seth discovers its history, he encounters a mysterious Incan group called the Order of the Seven Rays-and an alien who used the orb hidden in the box as a jump-gate for traveling to other worlds within a vast complex of string universes. Using the orb, Seth inadvertently enters the realm of the light walkers and visits an alien world to learn the secrets of the orb. He also meets Gaia, the sole survivor of an ancient race and the creator of Seth's orb and many others like it, now all stolen.

Gaia as protector of the orbs endeavours to recover as many of the stolen Orbs in a desperate attempt to undo their creation and the threat it imposes on civilisations.