Percy the porcupine loves balloons but he must find a way to keep them from popping.

Benny wants adventure and finds it as he and the other Alden children help uncover the plan of those who would prevent ballooning from coming to Lloyd's Landing.

A little girl's new friend is round, lighter than air, and looks like the moon at night.

Alexander has just moved into Stermont, but the elementary school is being torn down, his new classroom is located in the hospital morgue, a notebook he finds is full of information about monsters--and everywhere he turns there are spooky balloon men determined to attack him.

Digby, Percy, and Ariel used a hot-air balloon to escape their archenemy Lou Ella only to find out there is a storm headed their way.

A shy bird wants to become friends with a bear, but the bear already has a friend--a big, red balloon.

Rabbits bearing balloons frolic through a house, causing much consternation among its human occupants.

A balloon takes Ben on an adventure.

Henry Bear plans to search for his father, who left a park in Henry's care when he went off in a hot air balloon.

"Owl has a red balloon and Monkey wants it, but Owl does not want to share. So Monkey tries to find something to trade for the balloon"--