Faith and Ruin The Dawn of Reckoning by Amanda & Rory Webb:
 
Finding a murdered priest is the least of their problems.

When priestess-in-training Quay and her three bodyguards—taciturn swordsman Ghdion, pompous spellcaster Hypnocost, and good-natured ex-guard Lucius—discover a string of alarming murders, they unwittingly expose a plot by a cult bent on revenge against members of Quay’s own church.

Their investigation leads them to the capital, where paladin Avindea is thrust in the middle of the political intrigue surrounding its governing body. War looms on the horizon, and she strives to keep the city out of the impending conflict. Can our heroes stop the cult and preserve the peace before everything unravels?

Perfect for fans of cozy fantasy but with high stakes—like playing a tabletop role-playing game with your best friends in a richly imagined world where whimsy, chaos, and hope collide.

Faith and The Dawn of Reckoning is the first in a planned six book epic fantasy series.