Book Cruel is the Light — Sophie Clark

A brutal war between demons and humanity has raged across Europe for over a century. At its heart are two elite soldiers: Selene Alleva, a powerful exorcist trained at the prestigious Vatican Academy, and foot soldier, Jules Lacroix, unrivalled in battle.

When their paths cross, despite initial distrust – then unwelcome attraction – Jules and Selene discover a terrible secret at the heart of the holy Vatican City . . .

Soon Jules is forced to question everything he’s ever known – including himself. And Selene, unable to ignore her growing feelings for Jules, must make an impossible choice between love and duty.