Kill Order: A Contemporary Western Mystery Series

by Chris Mullen

In the gripping sequel to Dead Land , fans of Craig Johnson and C. J. Box will immerse themselves in West Texas life as it takes a sinister turn.

Cass Callahan and his family yearn for a return to normalcy after the unsettling mystery and murders that shook their beloved ranch, the CR. However, their hopes for peace are shattered when the ruthless Camargo cartel sets in motion a disruptive plot that threatens the very fabric of their hometown.

When Cass’s son, Spencer, returns for a visit and becomes embroiled in a life-altering confrontation where one wrong move could prove deadly, the cartel dispatches two sicarios to recover stolen technology, eliminate those who may have accessed the data, and leave no witnesses behind. With danger mounting, body counts rising, and Spencer now missing, Cass finds himself torn between his wife’s desperate pleas to find their son and his unwavering commitment to stopping the cartel’s murderous rampage.

Accompany Cass Callahan on a deadly journey, where danger looms, tensions escalate, and the town of Brewster is thrown into chaos. Grab your copy of book two in this contemporary western mystery series today!

“Chris Mullen’s writing is sharp and action packed. His talent and enthusiasm are enviable.” —Chris Enss, New York Times bestselling author

380 pages, Kindle Edition

Published March 19, 2024

About the author

Chris Mullen is an award-winning author, educator, and graduate of Texas A&M University from Richmond, Texas. Before becoming a full-time writer, he spent 23 years as a Kindergarten and PreK teacher, captivating his students with Rowdy adventures.

In 2021, he signed with Wise Wolf Books, launching the ROWDY series, which now includes six novels and two short stories (The Hunt and The River). His short story The River was featured in Ridin’ with the Pack, an anthology released by Wolfpack Publishing on December 26, 2023.

Chris also writes the Cass Callahan contemporary Western mystery series for Wolfpack Publishing. The series debuted in 2024 with Dead Land, followed by Kill Order and Hunting El Despiadado. Also, his short story, Hard to Kill was published in Ridin’ with the Pack, Vol. 2 in December 2024. More Cass Callahan adventures are on the way in 2025, including the novels Darkness Rising and Texas Terror.

Awards & Recognitions
•ROWDY~Wild and Mean, Sharp and Keen
2023 Independent Press Distinguished Favorite
2022 The Wild Bunch Film Festival - Best 1st-Time Western Manuscript Writer
2022 North Texas Book Fest Finalist - Young Adult
2021 Selah Award Finalist - Westerns
2020 Best Book Finalist - Westerns
2020 American Fiction Awards Winner - Westerns

•ROWDY~Redemption
2022 North Texas Book Fest Finalist - Young Adult

•ROWDY~Dead or Alive
2023 Will Rogers Medallion Bronze Medal
2023 Sunny Side Up Film Festival Winner - Best Action/Adventure Western

•ROWDY~Rescue
2024 Will Rogers Medallion Winner
2024 American Legacy Awards Finalist - Westerns
2023 American Fiction Awards Finalist - Westerns

•ROWDY~To Catch a Killer
2024 American Legacy Awards Finalist - Westerns
2023 American Fiction Awards Winner - Westerns

•ROWDY~Return
2024 Will Rogers Medallion Winner

Chris’s work continues to attract readers of all ages. Stay connected through his website, chrismullenwrites.com, or follow him on Facebook, Instagram, Threads, TikTok (@chrismullenwrites), and X (Twitter) @cmullenwrites.

Reviews

[Donadee's Corner · Rating 5 out of 5]

Hello, fellow book lovers! Today, I have the second release in the Cass Callahan series.

Chris Mullen has given us a great series featuring Cass & Raven Callahan. Book one explained that Cass and his wife Raven had moved to a small west Texas town where he had inherited a large ranch. Cass felt the room might give Raven time to recover from the attack and attempted rape. Not long after they got there, Cass found a dead body, and through the investigation, he agreed to work part-time with the local sheriff. Now, here we are in Book Two, 'Kill Order.' Cass and Raven's son, Stephen, is home for a visit, and both are ecstatic. Stephen becomes gobsmacked with Caroline, a local girl working at the DQ. Her previous boyfriend, Lance, goads him into a crazy deal of proving that he was not a pantywaist. Big mistake! They end up crossing the Rio Grande into Mexico, jumping across the small canyons when they happen on a mysterious man, who ends up killing Lance. Stephen hurts his ankle in an attempt to get away from the crazy man. Not only is Stephen on the run, but his parents are involved in their own turmoil in addition to their worry over where Stephen is. This book is a thrilling ride from start to finish, with twists and turns that will keep you on the edge of your seat. The characters are well-developed and realistic, with flaws and strengths that make them relatable. The setting is vividly described, making you feel like you are in the middle of the action. The plot is fast-paced and engaging, with suspense, mystery, and light romance. If you are looking for a book that will keep you entertained and hooked, then you should definitely check out 'Kill Order.' You won't regret it!

• ASIN: B0CQRWR1XN
• Publisher: Wolfpack Publishing
• Publication Date: 3/19/2024
• File Size: 4660 KB
• Print Length: 380 pages
• Genre: Crime Action Fiction, Men's Adventure Fiction, Mystery Action Fiction

[FredM2 · Rating 5 out of 5]

Kill Order continues the story of the CR Ranch and the callahans. It is packed with action and thriller suspense from the start. The CR is bordered to the south by the Rio Grande river and Mexico. The Callahan's and the Sheriff's department are being targeted by a Mexican cartel since they found a USB drive with damaging files for the cartel. Cass has taken an investigators position with the local sheriff's department. This leads to some very intense action with cartel killers. If that isn't enough their son is home from college for a visit and gets involved with a beautiful girl and her rather vicious ex boyfriend.
The action gets intense and it is very difficult to put the book down. It is a very good read and I recommend it highly. I would like to see another book in this series about the CR and Callahans.

[Theresa · Rating 5 out of 5]

Kill Order: A Contemporary Western Mystery Series (Cass Callahan Book 2)
by Chris Mullen
Cass must be the unluckily or luckiest man in west Texas. His life has two hit men, versus one very spunky and resourceful wife and one outstandingly courageous son. When Spencer Callahan comes to visit the Cr, it's only the beginning. This book has three subsequently mission impossible type adventures one for each Callahan family member. It shows the nature of family and the strength of maternal love. Readers are taken through nail biting adventures one after the other, with remarkable villains and a lot of collateral damage. The book leads to the next edition as ,Cass goes against the Cartel.

[Ronald Briggs · Rating 5 out of 5]

D is for Danger

Danger sums up the lives of the Callahan family in Kill Order, the second book in the Cass Callahan mystery series by Chris Mullen. This nail biting drama draws Cass, his wife Raven, and their son Spencer into the plot feature two professional cartel assassins. From Spencer's life and death struggles in a desolate Mexican canyon to Raven's desperate hand-to-hand combat with the deadly assassin La Sombre Negra to El Despiadado's murderous spree resulting in the total destruction of the South Brewster County Sheriff's Office, Chris Mullen leaves us thirsting for the next book in the series.

[KerryO · Rating 5 out of 5]

Cass and Raven are still trying to figure out how the CR will run smoothly with Cass being called out so often for his job. This continues to be an interesting contemporary western.