In a thriller, landscape should never simply be somewhere for the action to happen and at its best, it becomes part of the action.

When I began writing the River Swift Vigilante Thriller series, I wanted River to inhabit places that would challenge her physically but also reveal something about her character. She is a former US Army medic, accustomed to hostile environments and trained to notice danger. Put her in an unfamiliar landscape and she doesn’t simply see mountains, deserts, streets or empty roads. She instinctively looks for cover, escape routes and threats.

And sometimes the landscape itself becomes the threat.

Turning Setting into Suspense

Landscape is one of a thriller writer’s most useful ways of creating tension without firing a shot.

An isolated road means help is a long way away. A mountain creates blind spots. Darkness hides an enemy. Extreme cold slows the body and clouds judgement. An apparently endless landscape, like the savannah can create the uncomfortable knowledge that there is nowhere to hide. That’s why the geography of the River Swift series changes so dramatically from book to book.

In the prequel, Life Saver, the mountains of Afghanistan are beautiful but unforgiving. River is operating as a combat medic in a landscape where distance, exposure and difficult terrain can turn a rescue mission into a fight for survival. The mountains aren’t background, nice-to-have scenery. They influence every decision.

In Savage Peace, the landscape performs a very different role. River returns to a small town in Utah seeking answers about the deaths of her parents. Here, the physical landscape is intertwined with memories. Roads, mountains and familiar places connect River to a past sometimes too painful to remember. That emotional link creates another kind of threat.

Sometimes a landscape doesn’t have to be unfamiliar to be dangerous. Sometimes it knows too much about you and you drown in its shadows.

Beauty Makes Danger More Powerful

Some of the most effective thriller settings are extraordinarily beautiful. There is something unsettling about placing violence or danger against a magnificent landscape.

A sunset doesn’t stop because somebody is being hunted.

Mountains remain indifferent to human conflict.

Snow can cover traps as easily as it transforms a landscape into something breathtaking.

That indifference can make a thriller feel more visceral. The natural world carries on while the characters struggle desperately within it.

River herself has a strong connection with wilderness. In Kill Switch, one of the quieter moments takes her back to Alaska and the Northern Lights—a landscape associated with friendship and her former life as an Army medic. But wilderness in the River Swift world can offer sanctuary one moment and danger the next.

Nature can be both Beauty and The Beast…

Landscape Can Change the Hero

Perhaps most importantly, I don’t want River to move through a landscape without being touched by it.

Heat exhausts her. Altitude tests her. Cold slows her. Darkness changes the way she fights. Isolation forces her to rely upon herself and her friend Karen more. That matters because suspense becomes stronger when the hero isn’t completely in control.

River may have military training and formidable survival instincts, but nature doesn’t care. And that creates possibilities for a thriller writer.

Take away the phone signal.

Close the road.

Bring in a storm.

Let darkness fall.

Put miles between your hero and the nearest help.

Suddenly, a situation that was dangerous becomes something near fatal.

The Landscape Is Waiting

For me, the most memorable thriller landscapes must do three things at once: they establish a powerful sense of place, they affect the emotional state of the character, and they make the action more difficult.

When those elements come together, setting stops being scenery… It becomes an adversary.

And in the River Swift Vigilante Thriller series, wherever River travels—from mountains and deserts to cities and frozen wilderness—the landscape has one question waiting for her:

How far can you go before this place breaks you?

River’s answer, of course, is usually:

Further than you think.