Mary Robinette Kowal, award-winning author and narrator, returns to bring UNDENIABLE to life as an audiobook. Undeniable, by Jes Honard and Marie Parks, is the sequel to the award-winning supernatural thriller, Unrelenting (The Grigori Cycle).

Bring UNRELENTING to life as an audiobook. The authors of the award-winning fantasy thriller are seeking your support for this new, more accessible format.