Triple Threat (Irene Hannon) Books in Order

Triple Threat is built around the Reilly sisters, and that family structure gives the series a little extra snap from the beginning. Each sister works in a different field, one in media, one in law enforcement, one in forensic science, so each book gets its own kind of danger while still feeling connected to the others.

It is a smart setup.

Point of Danger follows radio host Eve Reilly as criticism of her on-air work turns into targeted harassment and a detective begins to realize someone wants her silenced for good. Labyrinth of Lies shifts to police detective Cate Reilly, who goes undercover at an elite girls' school where a disappearance exposes a nest of deception. Body of Evidence centers on forensic pathologist Grace Reilly, whose suspicions about a pattern of deaths in rural Missouri put her squarely in danger. Different professions, different investigative angles, same family backbone.

That backbone matters because the sisters never feel like a gimmick. They give the books continuity, emotional history, and a believable support system. Hannon uses their bond to add warmth to stories that could otherwise be pure thrillers. Even when the cases are tense, there is always the sense that someone knows these women well and will not let them face trouble alone.

The series also shows Hannon enjoying more elaborate suspense frameworks. Harassment campaigns, covert school missions, hidden links between deaths, she gives each novel a strong hook and then lets the danger build steadily. The romantic elements remain important, but the cases are sturdy enough to carry the books even before the emotional pieces click into place.

Start with Point of Danger, then continue with Labyrinth of Lies and Body of Evidence. Read in order if you can. The sister dynamic is part of the fun, and watching each woman step into the spotlight gives the trilogy a satisfying shape from first book to last.