(Paperback)

While painting a closet in the White House, KC discovers an old box full of handmade toy horses that once belonged to Thomas Jefferson. KC and Marshall go to Monticello to return the horses, but the box and the horses soon disappear. Illustrations.

(Paperback)

Legend says that on each dead president's birthday, his ghost haunts the grounds of the remote retreat Camp David. But KC and Marshall aren't worried, even though they will be there on October 14, President Eisenhower's birthday. Illustrations.

(Paperback)

KC and Marshall convince the President of the United States to pardon more than one turkey for Thanksgiving, but all 117 of them are stolen off the National Mall. Illustrations.

(Paperback)

KC discovers that the President of the United States has been replaced by a clone and sets out with her friend Marshall on a dangerous mission to set things right.

(Paperback)

(Paperback)

It's party time in Washington, D.C.! The president is planning a celebration at the Lincoln Memorial in honor of the man who sculpted the famous statue of Lincoln. But KC and Marshall notice one small problem'the left thumb has broken off the statue! Has someone stolen Lincoln's thumb Can KC and Marshall find it before the celebration begins

(Paperback)

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.