The Chains That Bound Us

Soleil and Luna had never known a life without each other.

Born into tragedy and left orphaned from the moment they entered the world, the twin sisters became each other's family, protector, and home. Even when adulthood eventually led them down separate paths, one thing remained certain: no matter where life took them, they would always find their way back to each other.

Until Luna chose to leave Earth.

When Luna joins a research expedition bound for Pandora, Soleil can do nothing but demand one promise from her twin-come back.
But Luna never does.

Consumed by grief and anger, Soleil is left with nothing but unanswered questions and the devastating news of her sister's death. Then comes an impossible request from the very people she blames for taking Luna away: take her sister's place in the expedition.

With only a promise to guide her and a heart shattered by loss, Soleil makes the decision that will change her life forever.

She will go to Pandora.

For Luna.

But as Soleil steps into the world her twin was meant to discover, she soon realizes that Luna may have left behind more than memories-and that the truth behind her sister's expedition could be far more dangerous than anyone ever told her.

Some promises are meant to be kept.
Even if you have to travel across worlds to fulfill them.