Four siblings. A country in ruin. One quest to save them all. Vira is desperate to get out of her mother's shadow and establish her legacy as a revered queen of Ashoka. But with the country's only quarry running out of magic - a precious resource that has kept Ashoka safe from conflict - she can barely protect her citizens from the looming threat of war. And if her enemies discover this, they'll stop at nothing to seize the last of the magic. Vira's only hope is to find a mysterious object of legend: the Ivory Key, rumoured to unlock a new source of magic. But in order to infiltrate enemy territory and retrieve it, she must reunite with her siblings, torn apart by broken relationships and the different paths their lives have taken. Each of them has something to gain from finding the Ivory Key - and even more to lose if they fail.