Helen Foster Series by Caroline Hanson

Sent back in time to Victorian England to stop the invention of a deadly weapon, Helen Foster knows the job looks too easy: All she has to do is go to an auction, buy the weapon plans, destroy them, and she’ll save millions of people back in her own time. And even if she spends the rest of her life as a spinster stuck in the English countryside with a plethora of cats, changing the future is worth it. Then she meets Edward Clifton, Duke of Somervale, the man she’s supposed to blackmail... moreSent back in time to Victorian England to stop the invention of a deadly weapon, Helen Foster knows the job looks too easy: All she has to do is go to an auction, buy the weapon plans, destroy them, and she’ll save millions of people back in her own time. And even if she spends the rest of her life as a spinster stuck in the English countryside with a plethora of cats, changing the future is worth it. Then she meets Edward Clifton, Duke of Somervale, the man she’s supposed to blackmail. He is one of the most powerful men in the land, so handsome and cold that debutantes have been known to faint in his presence. After one meeting, Helen will be thrilled to never see his royal (and quite spectacular) backside, ever again. But as her mission falls apart and danger closes in, Helen has no choice but to turn to the one man powerful enough to help her not just change the future, but survive the night. less

Helen Foster was saved from a watery grave by her BFF from the future and knows she’s lucky to be alive. Sadly, she’s not so lucky in love. Her blackmailed benefactor, Edward Clifton, the Duke of Somervale, thinks she’s dead. And Helen has to make sure it stays that way. But as Helen and her best friend Mary get charged with a new mission—save the Prince of Wales from assassination—avoiding Edward will be the least of her problems. Edward Clifton has nightmares about Helen’s death... moreHelen Foster was saved from a watery grave by her BFF from the future and knows she’s lucky to be alive. Sadly, she’s not so lucky in love. Her blackmailed benefactor, Edward Clifton, the Duke of Somervale, thinks she’s dead. And Helen has to make sure it stays that way. But as Helen and her best friend Mary get charged with a new mission—save the Prince of Wales from assassination—avoiding Edward will be the least of her problems. Edward Clifton has nightmares about Helen’s death. Beautiful, infuriating, deadly and with a vocabulary that would make a sailor blush, she was unlike any woman he’d ever known. And he failed her. Now he’ll go back to being the rule-abiding, proper (and admittedly rather boring) Duke he was born to be. But when Edward discovers that Helen might be alive and involved in a deadly quest, he must decide if he will let her go or risk everything to be with a lady most dangerous. This is the second and final book in Helen's and Edward's story. This book includes sex, swearing and historical liberties taken. less