Caliber Detective Agency Books in Order

After losing his longtime secretary and friend Velma, elderly private investigator Jake Caliber welcomes her niece into his life. The young woman's hidden secret raises questions about whether this new connection will comfort him or bring fresh trouble.

A visit to the Caliber family's past reveals Jake Caliber IV during a turbulent period in 2005. Meanwhile, Velma faces her husband's recovery, and Chris becomes involved with an insurance investigator as personal and professional concerns overlap.

The Caliber agency investigates a possible murder threat and a daughter's suspicious fiancé while Jake and Kelli travel to Texas to help relatives. These cases mix family obligations with clients whose fears may conceal more complicated troubles.

When Velma is accused of murder in a small Texas town, Jake, Chris, and Rayne travel there to prove her innocence. The investigation tests the Caliber agency's loyalties while its members also struggle with personal problems.

The Calibers search for the B-Girl killer while Gail struggles with guilt over Selina Clayton's murder. An investigation in Atlantic City brings further danger, and emerging personal secrets threaten to complicate the agency's efforts to stop him.

A murder in Gail's home leaves Jake Caliber's daughter-in-law missing. The family launches its own search alongside the police, but insurance investigator Rayne Carver's offer of help raises doubts about whose interests she is really serving.

Velma and Rayne investigate a missing girl while testing whether they can still work together. Meanwhile, Chris takes his first solo assignment, searching for a frightened man before an ex-con who has threatened his life can find him.

Jake and Kelli's wedding brings the Calibers together while Christopher faces an important personal decision. Sammy Sloan joins Pruitt/Carver, and professional rivalry intensifies when the competing detective agencies pursue the same case, mixing celebrations with workplace conflict.

In 1976, fourteen-year-old Gail asks Jake Caliber to help find her missing mother. Investigating the disappearance leads the private detective into unexpected danger, bringing his search for answers together with a young girl's urgent need for help.

Two brothers enter the Caliber building seeking revenge, placing Gail Caliber in immediate danger. Without a weapon, she must find a way to survive the invasion, turning the agency's familiar workplace into the setting for a deadly confrontation.

The Calibers investigate a man who fears someone wants him dead and a father's concerns about his daughter's fiance. A third case takes the older Jake and Kelli to Texas to help their family.