Lt. Jacqueline “Jack” Daniels has had her share of psychos to deal with. She’s hunted and captured the most dangerous killers in the country. Now a different breed of killer is on the hunt in her city. A spree shooting couple called The Blackjack Killers is on a rampage, leaving a trail of bodies across the U.S. They are now in Chicago. When the photo of Leah Ryan, a thrill seeking P.I. Jack once arrested, is found on one of the many bodies left by the Blackjack Killers’ latest spree, Jack wonders if Leah is a suspect or a soon-to-be victim. The Blackjack Killers have opened fire again, leaving dead bodies and playing cards in their wake. And they’ve only just begun. Happy Hour is an action-packed mystery-thriller, which teams up Tracy Sharp’s unorthodox heroine (Repo Chick Blues, Finding Chloe, Dirty Business) with J.A Konrath’s stalwart cop (Whiskey Sour, Shaken, Stirred) for the second time since the short novel Jacked Up! This Kindle Worlds novel is 66,000 words long, bringing together the worlds of Leah Ryan and Jack Daniels, and will delight fans of both series.