Ron Roy

When they discover that one of the thumbs has been broken off the statue in the Lincoln Memorial, KC and Marshall set out to learn what happened and restore the thumb before a ceremony honoring the sculptor.

KC's mother and the clone of the President of the United States are kidnapped by disgruntled astronauts who want to take over the International Space Station.

While visiting London, Dink, Josh, and Ruth Rose solve a mystery and meet the Queen.

When Leonard Fisher claims to be the long-lost heir to the Smithsonian fortune, KC and Marshall set out to prove that he is a phony.

While visiting Thomas Jefferson's home, Monticello, presidential stepdaughter KC Corcoran and her friend Marshall investigate the theft of a box of toy horses given to Jefferson by his grandchildren.

KC and her friend Marshall accompany KC's stepfather, the United States President, to remote Camp David, where they find clues that point to either ghostly or criminal activity.

KC and Marshall investigate the theft of a precious emerald, brought by representatives of the Chinese government to bring luck to two baby tigers born at the National Zoo.

"As Thanksgiving approaches, Nate and Lucy must help Bradley and Brian find out what their shady new neighbors are up to"--

KC and Marshall take a tour of the Bureau of Engraving and Printing, and when they discover that someone has been stealing bricks of newly printed money, they resolve to find the thief.

THE HAUNTED HOTEL
H Is for Haunted . . . A ghost has checked into the Shangri-la Hotel! It’s almost Halloween, and
reports of strange sounds and even stranger sights are coming from Green Lawn’s only hotel.
Every day, more and more guests are being scared away. Dink, Josh, and Ruth Rose must
figure out what’s going on and catch the ghost—before Green Lawn turns into a ghost town!
THE INVISIBLE ISLAND
I Is...