The Spy Switch (Harlequin Romantic Suspense, 2188) (USED) ROM

Her undercover husband is temporary

But her feelings are very real

Schoolteacher Jennifer Glass's ordinary life screeches to a halt when a criminal targets her. Moreover, she's mistaken for an identical twin she never knew existed! Now she's drawn to her sibling’s partner, ATF agent Micah Spokane. Micah needs Jennifer to play the part of his undercover wife to bust a gun-smuggling ring. He promises to protect her every step of the dangerous way, but they might not be able to resist the "fake" passion growing between them…

From Harlequin Romantic Suspense: Danger. Passion. Drama.