Recommended Reading Path: Where to Start?
Barbara Nickless has written two distinct, highly acclaimed mystery series, plus a standalone thriller. Because both of her main series feature intense, character-driven story arcs where relationships and personal traumas evolve over time, it is highly recommended to read each series in its proper publication order. However, you can choose which series to start with depending on your preferences:
- For gritty, action-packed police procedurals with K9 companions: Start with the Sydney Rose Parnell Series, beginning with the award-winning Blood on the Tracks (2016). This series is perfect for fans of military mysteries, canine heroes, and raw depictions of trauma and recovery.
- For intellectual, symbol-driven forensic mysteries: Start with the Dr. Evan Wilding Series, beginning with At First Light (2021). This trilogy will appeal to readers who enjoy decoding ancient runes, solving ritualistic crimes, and following an academic protagonist who uses forensic semiotics to catch killers.
- For international corporate espionage and suspense: You can read her standalone novel, The Drowning Game (2024), at any time, as it is completely independent of her other series.
Sydney Rose Parnell Series in Order
This series introduces Sydney Rose Parnell, a former Marine who served in Iraq as a dog handler. Now working as a railway police officer and investigator in Denver, Colorado, she is haunted by the ghosts of her wartime past. Alongside her is Clyde, a fiercely loyal Belgian Malinois who also served in the military and suffers from his own canine PTSD. Together, they tackle complex, dangerous cases that span Denver's rail yards, underground communities, and high-level conspiracies.
1. Blood on the Tracks (2016)
The series begins with Sydney and Clyde investigating the brutal murder of a young woman near the Denver rail yards. The primary suspect is a transient veteran, forcing Sydney to confront the local subculture of train hoppers, veterans, and her own haunting memories of the Iraq War. This debut novel won the Daphne du Maurier Award and a Colorado Book Award for its vivid setting and sensitive portrayal of PTSD.
2. Dead Stop (2017)
When a woman is murdered and her young child is kidnapped, Sydney is pulled into a frantic search. The case is complicated by its ties to a cold case from Sydney's own childhood and the recovery of a mysterious artifact. As Sydney and Clyde race against time, the emotional toll of the investigation threatens to break her fragile stability.
3. Ambush (2019)
Sydney is called to investigate the murder of a fellow veteran who was working undercover to expose a dangerous militia. The search for the killer takes Sydney and Clyde deep into the rugged Colorado Rockies, where they face hostile terrain and a conspiracy that reaches back to the battlefields of Iraq.
4. Gone to Darkness (2020)
Now working with the Denver Major Crimes Unit, Sydney is called to a macabre crime scene where a killer is staging victims to look like historical tableaus. As Sydney and Clyde track a highly intelligent, theatrical murderer, they must also navigate changing dynamics within the police force and the shifting landscape of Sydney's personal recovery.
Dr. Evan Wilding Series in Order
Transitioning from the rail yards to the world of academia and forensics, this series features Dr. Evan Wilding. Evan is a forensic semiologist—an expert in interpreting symbols, languages, and historical codes—who also happens to have dwarfism. Working as a consultant for local law enforcement, Evan uses his unique analytical mind to crack cases where the crime scenes themselves are puzzles waiting to be decoded.
1. At First Light (2021)
When a body is found ritually slaughtered on a beach in a manner resembling a Viking blood eagle, the police call in Dr. Evan Wilding. Evan must decode ancient runes and Norse mythology to track down a killer who is using historical rituals to enact modern vengeance.
2. Dark of Night (2022)
Evan is drawn into a mystery involving a rare medieval manuscript, a cryptic secret society, and a series of poisonings in Chicago. As the bodies pile up, Evan must work alongside detective Diana Sandoval to translate the clues left behind before the killer strikes again.3. Play of Shadows (2023)
A prominent theatrical production becomes the backdrop for a series of bizarre murders that mimic scenes from classic plays. Evan must analyze the theatrical motifs and subtexts to identify the killer among a cast of suspicious actors and crew members.
Standalone Novels & Anthologies
Outside of her two central investigators, Barbara Nickless has branched out into standalone suspense and early speculative fiction contributions.
The Drowning Game (2024)
In this high-stakes standalone thriller, Nadia Brenner travels to Singapore after her sister Cass falls to her death from a luxury hotel balcony. Refusing to believe the official ruling of suicide, Nadia steps into Cass's role at their family's elite superyacht design firm. Her search for the truth leads her into a web of international espionage, political conspiracies, and corporate corruption that stretches across the South China Sea.
New Writings in the Fantastic (2007)
Long before her breakout success in crime fiction, Nickless contributed a short story to this speculative fiction anthology edited by John Grant. The collection, which features a wide array of fantasy and science fiction authors, offers a fascinating look at Nickless's early writing before she focused on gritty thrillers.
What to Know Before You Start Reading
To get the most out of Barbara Nickless's thrillers, keep these core elements in mind:
Military and K9 Authenticity: Coming from a family with deep military roots, Nickless conducts meticulous research to ensure her portrayal of veterans, military canine handlers, and PTSD is accurate and respectful. Clyde the Belgian Malinois is treated as a fully realized character with his own perspective and trauma, which makes the partnership in the Parnell series exceptionally realistic.
Atmospheric Settings: Whether it is the gritty rail yards of Denver, the freezing heights of the Colorado Rockies, or the luxurious, humid docks of Singapore, Nickless's books feature rich, atmospheric descriptions that make the locations feel like characters themselves.
Chronological vs. Publication Order: For both the Sydney Rose Parnell and Dr. Evan Wilding series, the chronological order matches the publication order exactly. Because both series rely heavily on character growth and ongoing personal relationships, reading them in order is highly recommended for the best experience.