A Killer Through Time - The Enigma Detectives, #1

In the heart of 1930s Louisiana, where the air is thick with the scent of magnolia and mystery, the Grayson siblings-John and Eliza-stand as beacons of hope against the shadows. Their detective agency, the Enigma Detectives, is not just a beacon for the lost and the desperate; it's a battleground where the past and present collide. With their loyal white dog, Luna, by their side, they face a foe like no other: a killer who has slipped through the cracks of time itself, leaving a trail of bodies and the haunting echo of the Ace of Spades.
As the sun sets over the bayou, the game of cat and mouse begins, with the very fabric of time hanging in the balance.