Out Loud (The Charlotte Hayes Series Book 4)

After an unexplained breakup and months without speaking to him, Charlotte Hayes is given an undercover assignment that forces her into a steamy relationship with Special Agent Chase McKinney as part of their cover. Working hand-in-hand, the pair must determine the intentions of a billionaire and his wife and their possible link to terrorist activities.
With exes, explosions, secrets, and Las Vegas temptations coming at them from every angle, Charlotte and Chase must contain the damage, control their feelings, and find a way to survive.