Witchfinder Empires of Magic, #1

A Duke's Defiance Could Shatter Two Worlds
In an England where magic pulses through every cobblestone and the English Regency manners and modes never ended, one man's conscience threatens to topple an empire.
Seraphim Ainsling, Duke of Darkwater, inherited a legacy of forbidden heroism. For generations, his family served as witchfinders, crossing between worlds to rescue those condemned to die for possessing magical gifts. But when the royal princess vanished twenty years ago, the king sealed the borders between realities forever.
Now Seraphim faces an impossible choice: obey the crown and let innocents burn, or defy his king and risk everything he holds dear.
With only his enigmatic half-elf valet Gabriel Penn at his side, Seraphim tears holes in the fabric of existence itself, leaping between alternate Earths where magic means death.
His mother and sister are lost in Fairyland. His enemies circle like vultures. The king's patience wears thin.
But Seraphim's stubborn compassion burns brighter than caution. In a world where doing right means risking everything, he'll discover that the greatest magic might just be the courage to keep fighting when hope seems lost.
Some prices are worth paying. Some lines are worth crossing. Some hearts are worth breaking.
A spellbinding tale of sacrifice, family, and the dangerous allure of doing what's right in a world determined to punish goodness.