Two mice that live in a lighthouse along with a dog, a cat, and another mouse, lose their compass while exploring the forest, and learn to use their instincts before being rescued by an eagle.
At first Henry's very neat cousin doesn't like the cookies from under his bed or Mudge's slobbery kisses, but when they all play frisbee, she begins to enjoy her visit.
Pandora the cat, Seabold the dog, and their three adopted mouse children, call on the pelicans for help when Aurora the sea turtle becomes stranded in fog and cold water near the lighthouse.
While Henry's parents are at a Sweetheart Dance on Valentine's Day, he and his dog Mudge have a wonderful time staying at Mrs. Hopper's house, where they enjoy tea and music and dressing up in various costumes.
When Mr. Putter cannot sleep after eating too many of Mrs. Teaberry's pineapple jelly rolls, he and Tabby take a moonlit stroll that ends with the perfect neighborly gathering.
"Mr. Putter and his fine cat, Tabby, and Mrs. Teaberry and her good dog, Zeke, head for the sledding slope for the wildest ride ever. Maybe winter is not so slow after all!"--