At Every Hazard is a historical novel about one of that war’s genuine heroes, a college professor with no formal military training who, together with a small company of men, turned the tide of the battle and the war with a bayonet charge at Gettysburg. This was not the end of his exploits, however, and by war’s end, he was so respected that Ulysses S. Grant chose Chamberlain to accept the South’s surrender of the Army of Northern Virginia. The novel traces his evolution from an arrogant, overbearing professor to unwitting and unlikely hero and leader of men. Interwoven are subplots including the coming of age of his young orphaned aide, a complicated marriage, and of course, lots of rousing battle scenes. The story begins with a ferocious battle scene that orphans fourteen-year-old Emmett Collins. Following the last instructions of his father, Emmett shows up on Chamberlain’s doorstep in Brunswick, Maine, where he joins Chamberlain and the 20th Maine as they embark for war in the late summer of 1862. He grows from a boy into a man over the next three years as he accompanies Chamberlain on his rise through the ranks to Major General and recipient of the Medal of Honor. 

Though on its surface Maine is a state of pristine beauty; one of the last frontiers left in this country, behind the scenes is a different story. Big money runs the state, colliding with the interests of many of its citizens; corporate groups vie with environmental groups. Our mystery is set somewhere at the nexus of all of this, tracing what happens when these interests come into conflict over a nuclear power plant, creating a potential Three Mile Island. Langdon is a laid back, slacker detective, happy with his work, friends, and a way of life in the town of Brunswick, Maine. To compliment his income in small town Maine's scarce private detective market, Langdon also owns a mystery bookstore. He is an environmentalist. Football fan. Red Meat Eater. He votes independent, sometimes Democrat, never Republican. When presented with a real life murder mystery, Langdon is suddenly thrust way over his head. The meticulously dressed villain Shakespeare threatens his way of life before the Widow Dumphy has even hired Langdon. Follow Langdon and his band of friends as they attempt to untangle the web of intrigue and return Brunswick to 'the way life should be'.

Though on its surface Maine is a state of pristine beauty; one of the last frontiers left in this country, behind the scenes is a different story. When an ice storm ravages the state—leaving many homes without power for more than two weeks—tragedy strikes. A group of teenage boys take to robbing and vandalizing isolated houses deserted by the owners in favor of heat, light and water. They are arrested in the town of Brunswick, caught red—handed. The mother of one of the boys—Leroy Jones—hires Goff Langdon to investigate. Langdon is a laid back, slacker detective, happy with his work, friends, and a way of life in the town of Brunswick, Maine. To compliment his income in small town Maine's scarce private detective market, Langdon also owns a mystery bookstore. He is an environmentalist. Football fan. Red Meat Eater. He votes independent, sometimes Democrat, never Republican. The mystery lies not within whether the boys burglarized and vandalized, but why? Did Uncle Eddie put them up to the deed? Does the hatred stem from an old secret buried deep in the prep school the boys attend and play basketball for? Is the widow whom she claims to be? It is up to Langdon and his band of friends as they attempt to untangle the web of intrigue and get to bottom of a situation that has festered for too long.

When Goff Langdon is hired to find out who is blackmailing a US Senator for risqué behavior outside of marriage, Brunswick, Maine, becomes a hotbed of unrest. A complicated dance involving Russian gangsters, murderers, mercenaries, and lobbyists ensues.

Who is killing coeds in Portland?

Langdon must find the Old Port Killer, save his marriage from the ravishing Delilah Friday, and protect his family and friends from unseen enemies. Thus, when he is pegged for the murders, he must go on the run to make sure his friends and family are safe.

In this third installment of the Mainely Mystery series, Goff Langdon and his colorful group of friends pull out all the stops to make sure that life stays the way it should be in Maine.

In Cost’s fourth installment in the Mainely Mystery series, Mainely Angst, Langdon is hired to find a kidnapped boy. A man with a Salvador Dali mask threatens to execute the lad if the governor of Maine doesn’t ease up business restrictions and mask requirements due to the pandemic. 

Goff Langdon leads an ideal life in Brunswick, Maine. Happily married, good friends, mystery bookstore owner, PI, and a dog—the way life should be. And then angst erupts disturbing everything and threatening not only the way of life, but life itself. 

“Somebody stole my wife,” the man said. Did Annika Morin leave her husband or was she taken? 

“I was sexually harass’ by my boss and then fire’ when I refused his advances.” Raven’s dark eyes flashed a promise of anger and vengeance. 

Local brew pub owner Rick Strong is accused of sexual harassment, which seems likely, but is he guilty of much more? Or is it entirely fabricated?

“Where is my boy?” Jill asked, her words anguished. 

And then the boy is abducted, and the kidnapper attempts to hold the entire state hostage. If the governor refuses their demands, the kidnapper promises to execute the child on Halloween. 

Langdon is hired to find a man who answered a classified ad and then disappeared into thin air. And then a second person vanishes. What starts as a couple of simple missing-person cases quickly spirals into a diabolical world of witches, wiccans, and wendigos.

"You ever hear of the Church of Satan?" Jewell asked.

There was silence around the fire. The flames danced and flickered, casting shadows in the dark May night. Langdon took the bottle from Richam and poured himself another...

Bart, the dour but poetic cop, is back, even if demoted to a blue uniform. The dapper lawyer, Jimmy 4 by Four, is up to his regular philandering ways. Richam is hiding a secret from Jewell, and Chabal makes a new friend... And then goes missing.

What is going to happen during the Super Flower Blood Moon and who is the Wendigo?

This time, Langdon might be too late to solve these mysteries before the blood flows.

Things are not right in Brunswick. Chabal is wracked by the nightmare that was the Wendigo. Langdon is hired to investigate the questionable moral integrity of one of Brunswick's favorite sons and gets thunked in the head and left to die on a boat mooring in the Atlantic Ocean. And that is just the beginning of the bad.

Judge Cornelius Remington is being fast-tracked to be a Supreme Court Justice-why? After only a five-day investigation of Remington, Langdon is pulled from the case, suggesting that the judge had already been rubberstamped and that the White House staff and FBI were just going through the motions. But there are questions about the man's past that Langdon can't shake, a past that might still live in the present.

"Welcome to Maine: The Way Life Should Be." Or so the billboard reads upon entering the state. But that was before MAYHEM, a corruption born in Brunswick that has seeped throughout the state and is threatening the entire nation.

It is up to Langdon to find and stop MAYHEM before it is too late. And the clock is ticking.

Wolfe Trap is Cost’s debut novel in a new series surrounding a PI, Clay Wolfe, in the fictional coastal town of Port Essex, Maine. Instead of a large white shark threatening the populace, it is heroin being smuggled through lobster traps that is endangering the town.  

Clay Wolfe is a former Boston homicide detective who has left the police department to return home to Maine to care for his elderly grandfather and open a private detective agency. Haunted by being orphaned at an early age, and jaded by the corruption of the big city, Clay is happy to hit pause and investigate minor crimes.

“I want you to find the person who sold the drugs that killed my grandbaby.” 

When he is hired to find out who sold the drugs that killed a six-month-old baby girl, he has no idea of the evil that he is going to uncover in the underbelly of his hometown. 

Wolfe Trap is a thrilling ride set in a small Maine town with rich characters and shocking plot twists that will keep the reader rapt until the final pages.

Acclaimed psychological thriller author, Joseph Souza, on Wolfe Trap. "WOLFE TRAP introduces us to an eccentric and interesting cast of Maine characters…This gripping plot moves with lightning speed until it’s explosive and thrilling conclusion. Here we have murder, drug-smuggling lobstermen, heavy drinking, art theft and budding romance. Despite our hero’s hard-drinking and prolific womanizing, Clay Wolfe is a sympathetic and likable character. Cost’s jam-packed plot should appeal to all lovers of private detective fiction. I eagerly look forward to next book in this series.”

Mind Trap is the second novel in the Clay Wolfe/Port Essex mystery series. It delves into a radical cult threatening a small coastal Maine town. When Clay Wolfe is hired to find a missing girl, the events come tumbling down in rapid fashion.   

It was as close to ecstasy as the woman had ever been in her life. It was enlightenment. She was no longer Martha Abbott. She was a warrior of Marduk engaged in a war of purity.

“We have allowed sin to fill our homes, and it is our divine labor to cleanse that filth from our streets.” Marduk’s voice boomed through the cavernous temple.

Something evil is lurking in the streets of Port Essex. A missing girl. Violent attacks. It is up to Clay Wolfe, his partner Baylee Baker, and a colorful assortment of friends to get to the bottom of these odious occurrences before it is too late. 

Cosmic Trap: Publication date December 21, 2022

Pirate Trap: Publication date March 27, 2024

After finding an incredibly lucrative Spanish treasure in the Keys of Florida, Black Sam Bellamy decided to leave the pirate life and return to his true love in New England. Before being shipwrecked on the way to retrieve her, he hid his booty with the Chbo So Clan in Port Essex.

“Well, Mr. Wolfe, to get straight to the point, we want you to help us find a lost pirate treasure.”

Clay Wolfe had been slouched in the desk chair of his P.I. office, but now he straightened up and sat forward. His normally natty attire was ruffled, stubble dotted his face, and his eyes were red. “In Port Essex?”

Clay Wolfe, devastated by the death of his grandfather, is hired by an antiques dealer to find a long-lost pirate treasure and finds himself pitted against an unscrupulous sex doll businessman, a motorcycle gang, a greedy salvage boat operator, and other mysterious entities. Also recruited for this treasure hunt is Clay’s crew: Westy, Crystal, Murphy, Cloutier, and of course, Baylee Baker.