Madeline

The newspaper sponsors a treasure hunt leading to a chest full of money. The clues lead the group to famous Paris landmarks, where the girls lose valuable time when they stop to help people in trouble (like a little boy whose sailboat has blown away). When they reach the treasure chest, someone else has arrived there first.

Madeline convinces the young Prince of Monaco to remove his crown so he can spend an afternoon as an ordinary boy. But when the children return from the park, the priceless crown is missing. Using her superb detective skills, Madeline launches a citywide search that eventually implicates Pepito!

Pepito becomes frustrated when an old lamp from the Embassy attic fails to produce a Genie, and he throws the lamp in the trash. That night a frayed old Magic Carpet comes to Madeline's window and asks her help in finding the discarded lamp, because it does indeed have a Genie inside.

Madeline, the girls, Pepito, and his three naughty cousins go on a field trip to Egypt. Nicole becomes terrified when they experience a series of mishaps - from getting locked in the museum to getting caught in a desert dust storm on camelback. Then the group gets lost in the pyramids and encounters a mummy who speaks to them in an echoey voice and curses them with bad luck!

Lord Cucuface arrives at the Old House with a large chunk of prize-winning cheese (for fondue) and a new touring car. While Cucuface takes Miss Clavel for a calamitous driving lesson, the mice eat the cheese.

To raise money to buy Miss Clavel a birthday present, Madeline starts a detective school. Meanwhile, Miss Clavel is receiving mysterious gifts of great value - jewels, a painting, etc. Inspector Moreau discovers they are stolen by the infamous cat burglar Le Chat and arrives to question Miss Clavel.

Genevieve digs up a huge bone in the garden that turns out to be a fossilized stegosaurus' hip bone. The girls are thrilled with the discovery until the Old House becomes a dig site and is invaded by hordes of paleontologists and equipment. Calm is briefly restored after Miss Clavel convinces Lord Cucuface to donate the bone to a museum.

For their entry in the Science Exhibition, Madeline and the girls create a magnificent scale model of a hot air balloon. During the exhibition, Genevieve falls asleep in the balloon's basket and the balloon inadvertently takes off. With Genevieve floating over Paris, Madeline and Pepito enlist the aid of Professor Windbag, a hot air balloon "expert" who is more full of hot air than knowledge.

The American child star Sugar Dimples becomes homesick when visiting Paris, and especially misses Halloween, which is not celebrated in France. At first Sugar Dimples does not appreciate the children's efforts to cheer her up, even when the girls and Pepito turn an abandoned castle into a haunted house.

When the girls go for pony rides in the park, Madeline's pony, Gallop, (the smallest) does all sorts of fancy tricks and finally takes off, trotting across Paris! Soon they are discovered by Buffalo Ben, who invites them to appear in his touring Wild West Show.

In the middle of the winter holiday season, Miss Clavel gets called away from the Old House to care for her ailing aunt. Lord Cucuface replaces her with Mr. Grump, who is more of a drill sergeant than headmaster.

Madeline, Pepito and the girls take the famed Orient Express to Istanbul to compete in the International Spelling Bee. When a snake charmer on the train announces that his prize cobra is missing, Madeline and Pepito volunteer to search for the missing serpent (although the other girls refuse).

After Miss Clavel inspires the girls to read more books, they decide to put on a presentation of "The Hunchback of Notre Dame. " Pepito refuses to play the title role because he is embarrassed to portray an ugly, deformed character. In an attempt to change his mind, the group visits Notre Dame where a scary real-live hunchback swings down from the bell tower and carries off Miss Clavel!