Fifty-two historic boats. Two hundred thousand followers. One death that doesn't fit the water levels.
The Sedgeworth Working Boats Rally should be the happiest weekend on the canal. Engines thump, bunting flutters, and seventy-seven-year-old retired lock keeper Thurstan Pickersgill is trying to convince his teenage grandson that working a lock requires rather more attention than taking a selfie.
Then a celebrity canal vlogger is found drowned below Lock Three at dawn, his windlass still on the paddle.
He had two hundred thousand followers-and a talent for making enemies. The police suspect a drunken stunt gone wrong. Online, the tributes pour in.
But Thurstan has noticed something nobody can explain: a lock full of water that no boat ever used.
The Monday Puzzle Club is going to need more than crosswords to untangle this one. Winnie has fifty-two boats to fit into a logic grid. Ambrose needs his fingertips and three crucial numbers. Dorcas is studying old shipyard rivets with her one good eye. And Barney faces the terrible prospect of watching four hundred hours of a dead man's videos.
Thurstan's task is harder still.
The answers lie among the working-boat families he has known for half a century. People whose boats he has welcomed, whose children he has watched grow up, and whose friendship he thought he could trust.
Someone is relying on that loyalty to keep him quiet.
To discover what happened at Lock Three, Thurstan may have to lose the very people who taught him what the canal means.
Dead Slow at Lock Three is Book Two in the Monday Puzzle Club Mystery series: a warm, witty mystery of old boats, modern grudges and sharp-eyed sleuths who refuse to be overlooked.
A clean cozy mystery with a complete fair-play solution, no graphic content, no explicit scenes and no bad language.