The Kulku - the powerful renegade witches - want to go home, and they want to eradicate all those who tore them from their mother's sides and who rejected and banished them from their home planet, Malass. With a cruelty born of devastating loss, the Kulku take back what is theirs, but to keep it, they have to destroy Astra.

But, Astra has her own problems. The Xanetteian slug - the cannibal Sytor - sits on her throne. She is cruelly betrayed by Sisasskaa, and Jac' seems bent on abandoning her. She grows more powerful, but vengeance is uppermost in her mind. With her loyalties torn, and her grief overtaking her good sense, it seems that her choices will end up costing her everything.

Kulku is the final book in the Beyond the Bloodline Trilogy. Will Astra's long journey - from her years as a young Earth girl, to High Witch of the dragon bloodline, and heir to the Icarrion throne - end in triumph? Will she conquer her grief, survive the loss of almost everyone she loves, and become the queen she was destined to be? Take the last steps in the journey with her, and be there at the end.