Teenage detective Nancy Drew uses her courage and powers of deduction to solve the mysterious happenings in an old stone mansion. She recieved a phone call from her friend, Helen Corning. Helen says they were robbed, heard thumps in the night, and have heard strange music when no one has turned on the radio Helen begs Nancy to come to Twin Elms and try to solve the mystery.

The blatant acts of a lady swindler posing as Nancy Drew arouse the suspicion of friends and local police against the real Nancy.

Nancy goes undercover at the exclusive Green Club when George's cousin, a candidate for city council, is targeted by a mysterious saboteur who threatens the plans to build a new sports complex.

A special treat for Nancy Drew fans! Out just in time for Nancy's 80th anniversary, we're releasing a limited number of copies of The Secret of the Old Clock, the first book in the series. It's the exciting mystery that readers have fallen in love with for 80 years, with a terrific new look and bonus material! Collectors won't want to miss this.

A bookstore fire seems suspiciously like the plot of a bestselling author's mystery stories.

A rare Chinese vase is stolen from a pottery shop. Nancy and the owner of the shop feel that locating "the leaning chimney" will provide the clue to the vase and other stolen articles.

Having recently disembarked from the Arctic Star cruise ship, Nancy, Bess, and George suffer a series of near-misses before realizing that the unexplained mayhem that occurred aboard the ship has followed them onto dry land.

To celebrate her birthday, George is taking Nancy and Bess on a bike tour around Mystic Lake, but when their tour guide disappears and unknown adversaries steal their supplies and slash their tires, Nancy begins looking for clues.

"Nancy, George, and Bess are attending a three-day overnight camp at the local zoo. Theyll get to spend lots of time with all of the animals and learn about them, too. The best part is, they will be helping the zookeeper make toys for the animals, just like real staffers! But when the toys the girls make by day are disappearing at night, it looks like everyone is a suspect! Can Nancy tame this wild case, or will the zoo animals be without anything...

When a family friend, Grace, opens a sailing club on Lake Champlain at the former site of the Gemstone Islands Resort, Nancy, Bess, and George are invited to enjoy a few days of boating before the club's official grand opening. But when they arrive, they learn there have been some strange things happening on the property, from missing items to holes dug all over the yard. Is someone trying to sabotage the club, and could it have anything to do with...