Could Ms. Flitt, the Sussex school librarian, be a witch? It is a possibility that Shirley must entertain as she investigates a series of ominous mishaps at Sussex Academy.

Barf, Stink's dog, is under suspicion when neighbourhood cats start disappearing. When he is nabbed by Hoskins, the over zealous local dogcatcher, his life hangs in the balance.

Shirley infiltrates an organized gang of kiddie thieves after her backpack is ""snatched"" by a six-year-old pickpocket.

Shirley and Bo join the circus as they try to find out who left a baby boy on Mr. Howie's doorstep in the middle of the night.

Shirley's attempts to uncover the truth about a mysterious new boarding student at Sussex Academy place the young stranger's life in danger.

There is trouble on the set of The Happy Valley Show: props are exploding, background walls are falling over and Freddie the Firefly recently blew his lightbulb.

Sitting on the toilet becomes unsafe at Sussex Academy when the kids discover there is a slithering creature living in the water system.

When Bo befriends ""the crazy old lady"" who lives down the block, he and Shirley find themselves being pursued by a criminal impostor as they race to find a bag of stolen diamonds.

Bart is turning twelve--and everyone hopes his party won't be as boring as last year's. They needn't worry. Bart has a special guest lined up--his very own poltergeist!

When Robert Holmes is accused of stealing a top secret government decoding key from the British Consulate, Shirley jumps to her father's defense and vows to find the real offender.

An orienteering excursion into the deep woods brings to life a ghost story for the students of Sussex Academy.

When a disoriented stranger appears at the Holmes' front door with Joanna Holmes' stethoscope in his hand, Shirley is certain that the man has information on her missing mother's whereabouts.

Shirley suspects that Bo's cousin Zack, a musician, has something to do with the strange accidents that are taking other performers out of the picture and helping his career skyrocket!

At the observatory, Bart hears signals from outerspace and runs into Shirley on the case. When two officials show up, it becomes clear that the man in charge of the observatory is not who he says he is.

At a horse ranch, the ghost of a horse seems to be stealing other horses. Shirley meets a boy working at the ranch that may be able to help solve the case.

Molly and Stink are accused of stealing exam questions. Stink gets kicked out of the Academy and sets out to become a stand-up comic.

Mr. Howie stays at the Howie Farm, but when he stays their longer than he had expected, Shirley has questions. Not only do the animals on the farm act nuts, but there is a ghost legend, and a feud between the Howies and the Wilkinsons.

Shirley receives a message that her Grandmother has been kidnapped. As Shirley looks for her Grandmother, her own friends think that she was abducted.

Alicia shoots a movie, but when strange occurences and dissapearances happen, Shirley follows the wrong suspect and puts herself in danger.

To protect a friend, Bo sabotages the presses of the Redington Tribune.

After accepting a Woman of the Year award, Mrs. Stratmann is arrested for fraud. She is believed to be the wanted Honey Boulet, but Shirley believes that she's being framed.

Shirley witnesses a death threat against author Constance Quick and believes that the intended target may be a lip-syncing singer Jake Bane.

After Bo is attacked and his clothing is stolen by a gang of girls, Shirley joins them in order to find out more information about a former member they may have kidnapped.

Local stores are being robbed of $10 bills, and the theif is returning them afterwards. Shirley and Bo figure that the theif is looking for a special bill.

When a fever strikes a ruby mine in Rwanda, it's cure provides clues to the whereabouts of Shirley's missing and presumed dead mother.

Shirley and her dad head to Rwanda in order to gather more information on Shirley's mother.

Math classes at school are suspended due to budget cuts. Instead, the school receives new electronic equipment. Bo attends another school that has banned electronics and kept math in order to find out what's going on.

A ghost takes over Alicia's body and tries to make her kill Mr. Howie.

A very rare and dangerous sample of a deadly virus is stolen from the laboratory.

Shirley and Bo, along with 'Cowboy Matt' try to find the head of Kaeon. Meanwhile, the students start a protest to get math classes back.

Strange incidents are keeping the Sussex Hornets from winning the basketball championships. After one of the 'accidents' causes Bo to hurt his ankle, Shirley decides to find out who is behind the sabotage.

Shirley discovers a skeleton out while walking Watson. However, she suspects something is suspicious when the coroner won't admit to the fact that the body had a ring on one of it's fingers.

A French boy, Maurice, is trying to get Alicia's attention. Shirley believes that he is too perfect. Meanwhile, Alicia is also being scouted by an ad agent. The agent and Maurice seem to be connected.

Shirley and Bo must protect a teen tv star from an assassin.

When Shirley recieves an orchid from a secret admirer, a bee sting sends her into an anaphylactic-shock-induced dream where she tries to figure out who was the sender, with the help of clips from past shows.

When a dancer in a visiting Ukrainian dance troop steals a religious icon, Bo learns an unpleasant Sawchuck family secret.

Shirley and Bo discover a new side to Molly when they try to save Molly's horse, Foxglove, from being put down due to a suspected rabies infection.

Shirley tries to find out what's wrong with Mr. Howie after he's arrested for imprisoning Ms. Stratmann during a medieval festival.

Bo gets sucked into a real-life adventure game.