The Magpie Lord by KJ Charles

A lord in danger. A magician in turmoil. A snowball in hell. Exiled to China for twenty years, Lucien Vaudrey never planned to return to England. But with the mysterious deaths of his father and brother, it seems the new Lord Crane has inherited an earldom. He’s also inherited his family’s enemies. He needs magical assistance, fast. He doesn’t expect it to turn up angry. Magician Stephen Day has good reason to hate Crane’s family. Unfortunately, it’s his job to deal with supernatural threats. Besides, the earl is unlike any aristocrat he’s ever met, with the tattoos, the attitude…and the way Crane seems determined to get him into bed. That’s definitely unusual. Soon Stephen is falling hard for the worst possible man, at the worst possible time. But Crane’s dangerous appeal isn’t the only thing rendering Stephen powerless. Evil pervades the house, a web of plots is closing round Crane, and if Stephen can’t find a way through it—they’re both going to die.

Slippery Creatures by KJ Charles

Will Darling came back from the Great War with a few scars, a lot of medals, and no idea what to do next. Inheriting his uncle’s chaotic second-hand bookshop is a blessing...until strange visitors start making threats. First a criminal gang, then the War Office, both telling Will to give them the information they want, or else. Will has no idea what that information is, and nobody to turn to, until Kim Secretan—charming, cultured, oddly attractive—steps in to offer help. As Kim and Will try to find answers and outrun trouble, mutual desire grows along with the danger. And then Will discovers the truth about Kim. His identity, his past, his real intentions. Enraged and betrayed, Will never wants to see him again. But Will possesses knowledge that could cost thousands of lives. Enemies are closing in on him from all sides—and Kim is the only man who can help. A 1920s m/m romance trilogy in the spirit of Golden Age pulp fiction.