Obsidian & Moonstone

Calista is dying.

With the Mothers' Council out of answers and time running out, Selene does the one thing no siren is permitted to do: she bargains with a vampire. A moonstone for his blood. A forbidden cure for the sister she has found in every lifetime.

But the exchange ends in betrayal. The vampire dies by Selene's song, Calista rises changed, and the sisters are left with a secret capable of igniting war.

As the vampire court closes in, Calista struggles to control the power burning through her veins while Selene draws the attention of Shade—the Shadow Prince, a man shaped by a kingdom that mistakes possession for love.

The sisters have survived death before.

This time, survival may cost them each other.