Agent M4: Riordan (The D.I.R.E. Agency Series Book 4)

She’s hired to earn his trust.

He trusts no one.

After suffering in a Mongolian prison, Riordan St. James finds himself back in civilization, struggling to acclimate. When D.I.R.E. equips him with superhuman, prosthetic hands, the gift comes with a price—he must submit to psychotherapy.

When the complicated and elegant Natalie Meeks is hired to work with Riordan, their attraction is magnetic. However, after new evidence about his disappearance uncovers shocking secrets, he questions not only his decision, but the people around him – including his sexy-as-hell doctor.

As their lives become more entangled yet unglued, a madman turns up the heat on his plans for Natalie. And, the only person she can trust is the one man that doesn’t trust her…