Karen Brewer's imagination gets the best of her when she decides that her neighbor, Mrs. Porter--who has wild gray hair, wears black robes, and has a garden full of mysterious herbs--must be a witch.

It's fun to be a Baby-sitters Little Sister. No fair! Karen is having a bad-luck day. Her favorite jeans are missing. There's no prize in the Crunch-O cereal box. And Boo-Boo the cat runs away from her! Karen tries everything to make her day better. But her bad luck just won't go away. She even gets punished and sent to her room! Poor Karen--will this be her worst day ever?

"Christmas is coming to Camden Falls, and Flora and Ruby don't know how to feel about it. It's their first Christmas without their parents, and the memories are both happy and sad..."

Its autumn in Camden Falls and Flora and Ruby are just starting to settle into the town.

Karen has new roller skates. She is a very good skater. She can even do tricks. But oh, no! Karen falls down and breaks her wrist! She has to go to the hospital and get a cast. Karen wants somebody famous to sign her cast. It isn't going to be easy-but Karen won't give up till she gets the job done!

Thirteen-year-old Claudia concludes that she is adopted since she sees no resemblance between herself and her brainy older sister whom she rivals.