Humanity has already destroyed the Earth twice. Mother Earth won't give them a fourth chance.

The Earth is dying.

Again.

After centuries of pollution, destruction, and greed, humanity has finally pushed the planet beyond its breaking point. Their solution is simple: abandon Earth and find another world to call home.

Mother Earth has other plans.

Nikita knows exactly what comes next. Once human herself, she is now one of Mother Earth's Guardians—an immortal tasked with carrying out the Reaping. Billions will die. A chosen few known as Green Thumbs will survive. And when the last human has been sorted, Mother Earth will wipe away everything humanity created and give the planet a chance to heal.

Nikita has survived Reapings before. She knows the rules. She knows the cost.

But this time is different.

The Earth is taking longer to recover. Fewer humans are worth saving. And the time between humanity's mistakes is growing dangerously short.

This is their third strike.

There won't be a fourth.

Humanity doesn't need another world. It needs one last chance to save this one.

Chaska has spent her entire life avoiding three things: responsibility, attention, and becoming anything like the royal family she was born into.

Unfortunately, destiny has other plans.

When the gates between the Realms prepare to open for the first time in generations, Atlantis must choose one of its royal children to serve as Ambassador of the Sea. Chaska expects the honor to go to one of her stronger, smarter, far more ambitious siblings.

Instead, the Elders choose her.

Suddenly, the princess who never believed she belonged is carrying the hopes of an entire Realm—and drawing the fury of a sister who has never forgiven Chaska for having anything she wants.

But just as Chaska begins to believe she might actually be worthy of the destiny chosen for her, a celebration turns to bloodshed.

A prince is dead.

An ancient alliance is shattered.

And one white-tipped arrow may be enough to send Atlantis to war.