The Wrath of the Fallen by Amber V. Nicole — book slip

Dianna and Samkiel, born as immortal enemies, find themselves bound by a love that defies their ancient feud.

Samkiel, an ancient god with the power to end the world, and Dianna, a dragon shifter from the ancient race of ig’Morruthren, have built a city for the suffering souls left in the wake of their victory over the death queen Nismera.

However, peace is elusive as Dianna is plagued by dreams of an ancient danger that seeks her.

Samkiel must embark on a perilous journey to the Otherworld to protect her, while the King of the Underworld demands a debt be paid, and Nismera’s orphaned Armada seeks revenge. Can they overcome these threats and find happiness?