The Crescent City series (beginning with House of Earth and Blood) by Sarah J. Maas is an adult fantasy thriller set in the bustling, modern metropolis of Lunathion, where half-Fae, half-human Bryce Quinlan seeks vengeance after her best friends are brutally murdered by a demon. When the killings resume two years later and the wrong suspect is behind bars, Bryce is forced to partner with Hunt Athalar, a fallen angel bound to the Service of the Archangels as an assassin. Together, Bryce and Hunt navigate Lunathion's treacherous underbelly, dark magical syndicates, and corrupt celestial rulers to solve the murders, uncovering a world-altering conspiracy that threatens to destroy everything they hold dear.