S.J. Varengo has 4 audiobooks on Listento.it, narrated by 3 narrators. The most-rated is Assignment: London.

SpyCo operative Perry Hall has one more chance to serve justice on his wife’s killer, a man he has sought for years. But now, the pursuit lands Perry in the crosshairs of his own agency, as he defies a direct order to continue the chase. As SpyCo’s top agents converge in Istanbul with orders to take him out, Perry races through the city streets, searching for the deadliest killer he’s ever faced. From the dark underground of an ancient cistern to the lonely sound of the ezan, Istanbul comes alive in this thrilling adventure of high-stakes espionage, the third book in the SpyCo Novella Series.
©2017 Craig A. Hart (P)2019 Craig A. Hart

It was supposed to be a simple training mission. But it didn't turn out that way. When agents Archer and Fox undertake the field training for SpyCo's newest recruit, they could never have imagined how wrong things could go. A familiar foe has come into view, bringing along a new and dangerous threat. With Burke and Perry temporarily out of action, reinforcements are not an option, leaving the training team on their own against ever-mounting odds. The action runs fast and fierce in this blazing new addition to the SpyCo thriller series. New dangers, higher stakes, more evil villains...and somebody won't make it out alive.
©2018 Craig A. Hart (P)2020 Craig A. Hart

A girl in the one place she never wanted to be. Meeting the one person she never expected But what Peggy Nieman doesn't realize is that her life is about to change, as two broken souls fatefully collide. The only question is: Will they heal one another...or destroy one another? Because, one thing is certain: They can't quit one another.
©2020 S.J. Varengo (P)2021 S.J. Varengo

The long-awaited followup to Assignment: Dublin, this new installment in the series, Assignment: London, brings the story full circle. As James Burke struggles to come to grips with the apparent death of agent Lyndsey Archer, enemies - both old and new - are aligning against the agency. You can't trust anyone.
©2018 Craig A. Hart (P)2019 Craig A. Hart