Heist of Hearts Series by E.A. Winters

He’s cursed to steal three hearts—or die. She’s cursed to kill anyone who loves her. Together, they’ll pull off the heist of a millennium… or destroy each other trying. Grigg is a black-market swindler with a family curse and a ticking clock. Adelina is a fierce guardian with a death-mark on love and a vengeful mission. When fate throws them together, they must outwit ancient magic, a returning dark mage, and their own cursed hearts. Because if he loves her, she dies. If she loves him, he dies... moreHe’s cursed to steal three hearts—or die. She’s cursed to kill anyone who loves her. Together, they’ll pull off the heist of a millennium… or destroy each other trying. Grigg is a black-market swindler with a family curse and a ticking clock. Adelina is a fierce guardian with a death-mark on love and a vengeful mission. When fate throws them together, they must outwit ancient magic, a returning dark mage, and their own cursed hearts. Because if he loves her, she dies. If she loves him, he dies. And time is running out. less

They broke their curses by falling in love. Now that love might break them. To escape the Black Swan Mage, Grigg and Adelina made a deadly bargain with the Queen of the Sea—a siren who demands two secrets each from her enemies: the elusive Jester of Fates and the storm-bound King of the Wind. But in the strange town of Eversacht, where girls vanish and a swirling sandpit devours anything that slips too close, the Jester of Fates is more myth than man... moreThey broke their curses by falling in love. Now that love might break them. To escape the Black Swan Mage, Grigg and Adelina made a deadly bargain with the Queen of the Sea—a siren who demands two secrets each from her enemies: the elusive Jester of Fates and the storm-bound King of the Wind. But in the strange town of Eversacht, where girls vanish and a swirling sandpit devours anything that slips too close, the Jester of Fates is more myth than man. And as they hunt for secrets, Grigg begins seeing purple threads of hidden truths wrapped around every word, while Adelina’s wings—born from the mark of her past—carry her closer to the edge of who she used to be. Their hearts were once torn in two and fused together, binding their emotions—and pain—forever. But the beginnings of love may not be enough this time. Because the siren queen doesn’t trade in beginnings. She trades in endings. less