Cloak and Dagger by Rebecca King

Highwaymen are back in England!
The Star Elite are called in to investigate when the country is rocked by a spate of robberies and murders on the Great North Road. However, they soon encounter a problem. Their only witness, Phoebe, has disappeared. Sent to find her, the last thing Duncan expects to find is her at home where she should be. Determined to find out what is going on, Duncan has to unravel a complex web of lies and mysteries which leave him battling not just the men who apparently want Phoebe dead, but his own feelings for her. Phoebe stirs him in ways no other woman has and throws him challenges that rock his entire world. Can Duncan unravel the complex web of deceit that surrounds her, or will the highwaymen silence her forever?