Marc Brown's Arthur (Chapter books)

It looks like trouble when the principal asks Arthur to take home a large envelope marked "confidential".

When the quarters Arthur has collected for Mrs. MacGrady's charity drive mysteriously disappear, it's up to Buster to solve his friend's case.

When Arthur's third-grade class goes hunting for fossils at Rainbow Rock State Park, Buster actually finds one. The problem is, he wants to keep it. Can Arthur persuade Buster to return the important discovery, or will it stay buried forever in the back of Buster's closet?

When Arthur finds Sue Ellen's lost diary at the library, he wonders whether or not to read the diary before he returns it to Sue Ellen.

When Arthur's third-grade class seems to be losing all the events at the Middle Ages Fair, Arthur saves the day by pulling the sword from the stone.

At Prunella's half-birthday party, her sister unveils a fortune-telling cootie catcher that seems to be able to predict the future.

Brain and Francine devise the perfect plan to get even with Muffy after she bribes the judges at the science fair.

When Buster rescues a cat stuck in a tree he is treated like a hero, but when he begins to enjoy his celebrity a little too much, his friends devise a plan to bring him back to his old self.

Arthur is looking forward to having his friend the Brain spend an entire weekend at his house, but then the Brain shows up and starts acting a little too much like the perfect family member.

Arthur's feelings are hurt when Buster begins to spend all his time with his new friend, Mike.

Unhappy about how much homework they have to do, Arthur and his friends dare each other to skip school.

Buster tries to convince Arthur, the Brain, and his other friends that he not only saw a UFO but also a comet heading for the earth.

When Arthur fails to show up for his second piano lesson, his music teacher dismisses him. Now Arthur has to decide how much he wants to learn to play the piano.

Arthur's Grandma Thora, a marbles champion, trains him for the first-ever Elwood City Marbles Tournament, but does not tell him that she will compete against him.

Arthur and his friends set out to make the world's largest pizza so that their feat can be recorded in "The Book of Incredible and Amazing World Records."