The Obsidian Tower, Paperback

One woman will either save an entire continent or completely destroy it in a captivating epic fantasy bursting with intrigue and ambition, questioned loyalties and broken magic
"Guard the tower, ward the stone. Find your answers writ in bone."
Deep within Gloamingard Castle lies a black tower. Sealed by magic, it guards a dangerous secret that has been contained for thousands of years.
As Warden, Ryxander knows the warning passed down through generations: nothing must unreal the Door. But one impetuous decision will leave her with blood on her hands--and unleash a threat that could doom the world to fall to darkness.
"Keep your trust through wits or war--nothing must unseal the door."
Rooks and RuinThe Obsidian Tower
For more from Melissa Caruso, check out:
Swords and FireThe Tethered MageThe Defiant HeirThe Unbound Empire

Melissa Caruso was born on the summer solstice and went to school in an old mansion with a secret door, but despite this auspicious beginning has yet to develop any known superpowers. Melissa has spent her whole life creating imaginary worlds, and in addition to writing is also an avid LARPer and tabletop gamer. She graduated with honors in Creative Writing from Brown University and has an MFA in Fiction from the University of Massachusetts Amherst. Melissa's first novel, The Tethered Mage, was shortlisted for a Gemmell Morningstar award for best fantasy debut.