About the book

About The Dark Underworld: A Walker Series Thriller (Mason Walker)

Mason didn’t listen to his gut. And now it may cost him his daughter. Nearly a full year has passed since Mason Walker’s last dangerous mission. Clara, his daughter, has finished her first year at Stanford and her first professional job. To celebrate, Mason and Clara jet off to Egypt for two weeks before her sophomore year begins. All seems normal on the trip. They sight-see, meet other travelers, and take photos. But as soon as they land back in Baltimore, Onyx calls. They need Mason’s help. What Mason and the rest of Onyx don’t know, however, is that soon, a new mission comes up, one even more important than the one Onyx requested. One that will leave Clara’s life in the balance.

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