Nephews in Peril is a collection of six new mysteries for Brindlewood Bay, plus some revised rules. The new mysteries are:
"Dead Man's Hand" by Donna Giltrap: The Mavens are playing in a charity poker tournament when a card shark from Las Vegas is shot dead in the dark!
"Lies and Dolls, or A Very Brief Tenure" by Sharang Biswas: A college history class's field-trip to a creepy doll museum in Brindlewood Bay goes pear-shaped when the professor turns up dead!
"Deadly Silent Auction" by Petra Volkhausen: A cast of eccentric characters shows up at Aubertin's Antiques to participate in a silent auction—and to view the fabled Elderwing moth—when an auctioneer dies under mysterious circumstances.
"Homecoming at Bonfire Cliff" by Calvin Johns: Bonfire Cliff has been a favorite hangout spot for high school kids in Brindlewood Bay going back decades. But this scenic spot has a dark history that's getting darker by the minute!
"Carnival Carnage" by Alicia Furness: The Carnivale Noctis is in town, and the Mavens are enjoying the sights and sounds when a young carnie is murdered. What dark secrets can be found in the Funhouse and the fortune teller's tent—and will the Mavens ever be the same after this case is solved?
"Fudge, Jury, and Executioner" by Chris Bissette: The Mavens are in the strangely anglophilic town of Faversham, just up the road from Brindlewood Bay, judging a fudge competition. When the organizer of the competition turns up dead, the Mavens are conscripted by the local constabulary to interrogate the locals and find out what happened.