North Star Series by Nicole Helm

Someone’s watching them.Someone they’d never suspect.Reece Montgomery’s on an undercover mission to learn what unsuspecting B and B owner Lianna Kade knows about her husband’s murder. However, the workaholic North Star agent finds himself in serious danger, not the least of which is his unprofessional need to protect Lianna and her son, Henry. When the fearless widow proposes an ultra-risky plan to lure a killer, it will test Reece’s resolve not to fall for Lianna and her fatherless child.

She’s spent her life concealing her identity.Now she must trust an undercover agent to survive.Willa Zimmerman grew up as the daughter of spies, so she’s always known her life could be in danger. That’s why, when North Star undercover operative Holden Parker follows her to her home, seeking a lead on a hit man, she captures him. But soon they learn they’re actually on the same side—and they’re being pursued by the same relentless foe... moreShe’s spent her life concealing her identity.Now she must trust an undercover agent to survive.Willa Zimmerman grew up as the daughter of spies, so she’s always known her life could be in danger. That’s why, when North Star undercover operative Holden Parker follows her to her home, seeking a lead on a hit man, she captures him. But soon they learn they’re actually on the same side—and they’re being pursued by the same relentless foe. Together, can they stop a deadly hunter before they end up as the next victims? less

She’s hunting a hit man…Now she and his next victim are targets…North Star undercover operative Sabrina Killian is on a hit man's trail. She doesn't need help from Wyoming search and rescue ranger Connor Lindstrom. But the persistent ex-SEAL is the killer’s target—and soon they are both being hunted. Now they’ve joined forces to uncover a treasonous conspiracy. But will Sabrina's and Connor’s most dangerous secrets even the odds—or take them out for good?

Can he get justice—without getting them both killed?After attempting to expose corruption in the highest ranks of the military and being unceremoniously discharged, former navy SEAL Nate Averly becomes an assassin’s next target. When Nate flees to his brother’s Montana ranch, North Star agent and tech expert Elsie Rogers must protect him and uncover the threat before more lives are lost. But they’re up against a cunning adversary—and a cover-up that’s bigger and deadlier than they ever imagined…