Guess Again by Charlie Donlea Summary: Twists That Will Shatter Your Trust

Last Updated: August 20, 2026

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A Twisted Cold Case Thriller That Redefines Guilt

A record-breaking heat wave smothers Wisconsin in the summer of 2025, and the air itself feels thick with secrets.

Former DCI agent Ethan Hall thought he had buried his past when he became an ER doctor.

But a dying friend’s plea and a governor’s desperate offer pull him back into the one case that could destroy everything he thought he knew.

TL;DR: The Shadow of a Perfect Record

Ethan Hall left criminal investigation to heal bodies, not hunt monsters.

A decade after Callie Jones vanished from a lakeside party, her father—now the governor—asks Ethan to find the truth.

What starts as a favor for a dying partner spirals into a cat‑and‑mouse game with a jailed serial killer, a storm‑soaked final stand, and a letter that inverts the entire story.

Key Takeaways Without Spoilers:

The cold case of Callie Jones entwines with a 1990s murder spree known as the Lake Michigan Massacres.
Manipulation runs both ways: the imprisoned Francis Bernard seems to lead the investigation as much as Ethan does.
Double lives and buried identities drive the plot, forcing every character to confront the gap between public heroism and private horror.
A final revelation recasts a dead father’s legacy and sets the stage for an uncertain sequel.

Guess Again Summary: The Full Story (Spoilers Ahead)

In the summer of 2025, Ethan Hall works quietly as an emergency room physician in Madison.

He walked away from a perfect solve rate at the Wisconsin Division of Criminal Investigation after “kid crimes” hollowed him out.

His former partner, Pete Kramer, shows up in the ER with an ALS diagnosis and an impossible request: reopen the 2015 disappearance of Callie Jones.

Callie’s father is now Governor Mark Jones, and he offers to erase Ethan’s crushing medical school debt in exchange for a consultant’s badge.

Ethan agrees, but the trail immediately leads back to the Lake Michigan Massacres—a series of 1993 murders where victims were marked with black hearts tattooed on their breasts.

Ethan’s own father, Detective Henry Hall, was killed during that investigation, and Francis Bernard sits in prison for his murder.

Francis begins dangling clues from solitary confinement. He sends Ethan to an abandoned Milwaukee warehouse, where a prepaid burner phone used by Callie in 2015 waits inside a hollowed‑out wall.

The phone, bypassed with the help of tech expert Christian Malone, reveals that Callie was pregnant and visited a Chicago clinic, deciding to keep the baby just before she vanished.

Then Francis escalates the stakes. He provides a photograph of Portia Vail, a woman recently reported missing in 2025, clearly alive and bound. He demands a transfer to a less secure facility in exchange for Portia’s location—and for the remains of Callie Jones.

Behind the scenes, a woman posing as Eugenia Morgan (actually Harriett Alshon) orchestrates Francis’s violent escape during his prison transport.

Meanwhile, Ethan’s girlfriend, Milwaukee detective Maddie Jacobson—herself the sole survivor of the 1993 killer—helps him dig through old files. The deeper they go, the more the evidence points toward Lindsay Larkin, Callie’s best friend and now a successful CEO.

Lindsay had been obsessed with volleyball coach Blake Cordis, the father of Callie’s unborn child. Jealousy drove her to murder Callie and frame Blake.

But Lindsay’s scheme unravels when Francis, fresh from his escape, tracks her down and kills her as revenge for her role in manipulating him years ago.

The climax explodes at Lake Morikawa. Ethan and Maddie find Portia Vail alive in a derelict cabin. Before they can get her to safety, Francis and Harriett arrive at Ethan’s own lake cabin.

In the violent fight that follows, Chippewa elder Kai Benjamin is murdered, Maddie kills Harriett with an ancient fishing spear, and Ethan chases Francis into the raging rapids of Heaven’s River during a catastrophic storm. Francis vanishes beneath the water and is presumed dead—his body never recovered.

Weeks later, a letter arrives from the Mexican border. Inside is a key to a storage unit.

There, Ethan uncovers photos and recordings that prove his father, Henry Hall, was not a hero who died catching a killer.

Henry was Francis Bernard’s partner in the 1993 murders. The book ends a year later, with Ethan back at Lake Morikawa, grappling with this poisonous legacy.

New “Black Heart” murders begin to surface, and Ethan prepares to hunt for the still‑missing Francis once more.

Summary by Chapter (Grouped Narrative Arcs — Spoilers)

The Reluctant Return

Ethan Hall’s quiet life as an ER doctor shatters when his dying former partner, Pete Kramer, asks him to solve the cold case of Callie Jones.

Governor Mark Jones recruits Ethan as a consultant, and the weight of a decade‑old disappearance settles back onto his shoulders. The oppressive heat and his own buried guilt set the emotional backdrop for everything that follows.

Echoes of 2015

While a mysterious woman prepares a violent transformation in Milwaukee, Francis Bernard begins a calculated game from solitary confinement.

Ethan interviews Callie’s best friend Lindsay Larkin, coach Blake Cordis, and others who orbited her life, peeling back layers of a secret pregnancy and a family that never truly listened. A parole hearing for Francis is denied, but his influence already stretches beyond the prison walls.

Clues from the Dark

Francis leads Ethan to Callie’s hidden burner phone in a warehouse, and the digital trail confirms she intended to keep her baby after a Chicago clinic visit.

Then the killer raises the stakes with a photo of a fresh victim, Portia Vail, turning the investigation into a frantic hostage negotiation. Each clue Francis doles out feels less like cooperation and more like a predator guiding its prey.

The Escape and the Reveal

Ethan and the governor race to meet Francis’s demands while Harriett Alshon executes the bloody plan that springs Francis during a prison transfer.

High‑tech forensic analysis exposes Lindsay Larkin as the one who faked a confession and murdered Callie out of jealousy. The revelation arrives too late to stop Francis, who has already begun his own form of retribution.

The Final Reckoning

Ethan flees to Lake Morikawa with Maddie, but Francis and Harriett follow, turning the peaceful wilderness into a kill zone during a massive storm.

Kai Benjamin dies protecting those he loves, and Harriett is killed by Maddie. Ethan and Francis clash at the river, with Francis swept away and lost.

A year later, Ethan receives proof that his father was the 1993 partner, and fresh murders bearing the black heart signature pull him back into the hunt.

Characters in Guess Again

Character	Role
Ethan Hall	ER physician and former DCI special agent with a 100% case clearance rate, drawn back into investigation.
Pete Kramer	Ethan’s former DCI partner, dying of ALS, who initiates the reopening of Callie Jones’s disappearance.
Maddie Jacobson	Milwaukee Police Department detective, Ethan’s girlfriend, and the only survivor of the 1993 Black Heart Killer.
Francis Bernard	Inmate convicted of killing Ethan’s father; a manipulator who orchestrates his escape while feeding clues from prison.
Callie Jones	The governor’s daughter who vanished in 2015; her pregnancy and best friend’s jealousy triggered the crime.
Mark Jones	Governor of Wisconsin and Callie’s father, who hires Ethan as a consultant to bring closure.
Lindsay Larkin	Callie’s best friend and a successful CEO; revealed to be the actual murderer driven by obsession with coach Blake Cordis.
Harriett Alshon (alias Eugenia Morgan)	Francis’s devoted accomplice who facilitates his escape and commits violence on his behalf.
Blake Cordis	Callie’s former volleyball coach and the father of her unborn child.
Christian Malone	Tech expert who helps Ethan bypass the encryption on Callie’s burner phone.
Kai Benjamin	Chippewa elder and Ethan’s trusted friend at Lake Morikawa, killed during the final confrontation.
Henry Hall	Ethan’s deceased father; posthumously revealed as Francis Bernard’s partner in the 1993 serial murders.

Guess Again summary — Guess Again by Charlie Donlea Book Cover

Similar Books to Guess Again

Twenty Years Later by Charlie Donlea — Features another cold‑case investigation where modern forensics and a tenacious journalist unearth truths buried for two decades.

The Girl Who Was Taken by Charlie Donlea — Centers on the aftermath of a high‑school abduction, tracing how the survivors and their families cope with trauma and mystery.

The Silent Patient by Alex Michaelides — A psychological thriller layered with a sudden, shocking betrayal and a protagonist whose hidden past drives every twist.

Dark Matter by Blake Crouch — While rooted in science fiction, it shares the core thread of alternate life paths and the haunting question of what might have been, echoing Ethan’s career shift.

Sharp Objects by Gillian Flynn — A gritty, atmospheric mystery packed with dark family secrets, small‑town corruption, and a protagonist wrestling with inherited trauma.

The Woods by Harlan Coben — A prosecutor discovers his long‑lost sister may still be alive, unspooling a classic missing‑person thriller with secrets that refuse to stay buried.

Charlie Donlea: Master of the Layered Mystery

Charlie Donlea is a USA Today and #1 internationally bestselling author known for tightly plotted suspense novels that weave forensic science with family secrets.

You can explore more of his gripping novels through Charlie Donlea’s book summaries on URSummary.

Frequently Asked Questions About Guess Again

Who is the real killer of Callie Jones?

Callie’s best friend Lindsay Larkin murdered her out of jealousy over volleyball coach Blake Cordis, who had fathered Callie’s unborn child. Lindsay framed Blake and continued her life as a successful CEO until the truth surfaced.

What is the final twist in Guess Again?

After Francis Bernard escapes, Ethan discovers that his own father, Detective Henry Hall, was not a murdered hero but Francis’s secret partner during the 1993 Lake Michigan Massacres. This revelation forces Ethan to rebuild his entire understanding of his family legacy.

Does Francis Bernard die in Guess Again?

Francis is swept into the rapids of Heaven’s River during a storm and is presumed dead, but his body is never found. A letter from the Mexican border and the reappearance of black heart murders a year later suggest he survived and remains at large.

How does Guess Again end?

The novel ends one year after the climactic river fight, with Ethan back at Lake Morikawa. He receives a letter from Francis that contains a key to a storage unit holding proof of his father’s guilt, and new murders with the black heart signature push him to rejoin the hunt.

What happened to Callie Jones in 2015?

Callie disappeared after discovering she was pregnant and deciding to keep the baby. Her best friend Lindsay, obsessed with the baby’s father Blake Cordis, murdered her and concealed the body, leaving a cold case that festered for a decade.

Why does Ethan Hall leave the DCI to become a doctor?

Ethan walked away from his flawless record as a criminal investigator because the emotional toll of child‑related crimes drained his hope. The novel describes him as losing faith in humanity and seeking a life of healing instead of hunting.

Is Guess Again part of a series?

Guess Again is a standalone thriller from Charlie Donlea, but the ending deliberately leaves room for a possible follow‑up. The unresolved status of Francis Bernard and the resumption of the black heart killings suggest more story could come.