Vanishing Trail by Maria Lokken

Back from her undercover case, she was suddenly faced with a past love.

It had been a year-long mission, but now FBI Agent Taylor Shore could finally be herself. She just never expected her new assignment would have her working with Zack Ramirez, the cybersecurity expert she’d never forgotten but had to ghost because of her job. Working together is tense enough, though taking down a sextortion ring with the man she always loved but had betrayed feels far more dangerous. She and Zack need mutual trust to locate the criminal’s vanishing trail. And they’ll need even more to risk love once again.