Forged in Fire: Book 1: The Heaven's Fall Series (Paperback) (ISBN-13: 9798822942301)

The breakout debut from Thistleman Thistlemaster, Forged in Fire, weaves a complex and morally-gray tale of an ancient Demon Lord hybrid, a magicless daughter of a Duke, and the contract they make with each other to stay alive.

In an epic fantasy world, Sendrien Dagon rules as an ancient Demon Lord hybrid over the land. However, when he destroys his home world and receives a fatal injury, he's thrust into a new reality when a summoning spell goes awry. The world - that of Diane Culaine - is nothing like what he's known, and it will take a miracle to stay alive with his injuries. That miracle comes in the form of a forced contract with young Diane. It saves his life... and binds the two together.

Diane is Duke Vermillion's youngest daughter. To the abhorrence of her family, she was born without the ability to use magic. Recently kicked out of her home for her weakness and the disgrace her existence is to the family, Diane enters into a contract with Sendrien and takes him along on her journey to gain strength. The pair must navigate how to live and survive in a cruel and difficult world full of terrible beasts and violent creatures.

Forged in Fire is an isekai-lovers dream; it combines the darkness and inevitability of death from Berserk, Death Note, and Goblin Slayer with light-hearted moments and occasional humor along the lines of That Time I Got Reincarnated As A Slime. Brooding, thought-provoking, and meaningful, Forged in Fire remains an explosive first book in what promises to be an engaging and unique series.