Mona saves the new drama coach; An alien magician tries to use a piece Charley's asteroid.
Mona's parents sell her 'Book of the Slimy' at a garage sale; vampire romances werewolf before the full moon.
An old ghost from a train robbery has the kids reopen the case; Mona, Lily and Charley investigate a rash of wereclown sightings.
A mythological beast runs through the town; Fang has a strange attraction to a demon cat lady.
Television offers disastrous cooking tips; the spelling bee is a honey.
A toy factory makes robots to take over the world; aliens hide within hideous wigs.
Mona discovers how the town works; the Great Phineas arrives with plans to build a new interchange.
Lilly gets sucked into her television; Mona discovers a ghost in a suit of armor.
Mona and her pals meet their monster movie hero; Mrs. Bryerson's wedding is in jeopardy.
The gang fears that Freddy is responsible for the missing fast food; Charley joins a band with vampires.
A black hole threatens to swallow Mona's hometown; Mona decides to do a report on the new curator of the wax museum.
A creature called Potato Fish causes people to relax into a dull stupor; Mona discovers something about her mysterious aunt.
A rock giant threatens to crush the town; the trio attends a space camp.
A baby with special charms turns the adults into babies; Mona battles a creature made of trash.
A flu epidemic hits the school; a postman creates the ultimate chain letter.
A shamon statue comes to life; Charley joins a boy's camping club.
A ninja ghost scares Mona; Mona finds out that the new boy in class is a Neanderthal.
Two elderly sisters move into an old mansion in town; Charley gets trapped inside the mansion of a famous mystery writer.
A model gets the town to join her tanning club; Mona discovers a serpent creature in a shallow river.
A cyborg phantasm wreaks havoc with electronic appliances; Mona's cat goes missing.
A radio transmitter and strange sonic disturbances; Mona suspects the new soccer coach is a sasquatch.
A ventriloquist act gets big laughs at Mona's expense; Mona notices a mysterious limousine.
An old suit changes Mona's father's personality; Mona finds trolls living in the basement.
Mona discovers that Dr. Java is trying to run Mr. Hyde out of business; Mona gets reprimanded for bringing a library book back late.
Cupid's cousin Stu ruins St. Valentine's Day; Mona finds miniature pirates.
Alien musicians brainwash the town; Mona's cousin frees Von Kreepsula.
A dead uncle returns to complete a mission; the gang is in a chaotic dimension.
Mona faces off against a bird boy; a groundskeeper threatens the town.
Mona discovers a time travel contraption; a clockmaker freezes time.
A dance instructor puts a hex on Dottie; Angela's new pet is actually a magician.
A creature feeds on the energy of others; teachers are substituted by aliens.
Mona tests her fortune-cookie fate; Mona develops empathy for Angela.
A chemical enlarges fleas to human size; Principal Shawbly loses his shadow.
Mona tries to capture an evil genie; Angela designs creepy dolls.
A man creates a miniature town; Mona is switched with an evil reflection.
The Man With 9 Lives comes to town; lightning brings a giant yam to life.
Miss Gotto may be enthralled with a voodoo chief; ghoulie haunting a laundromat.
An Egyptian mummy terrorizes the town; a snowman experiment goes awry.
Mona loses her secret scrapbook; a couple takes over kitchen duties.
A vampire hunter becomes a student; a siren puts a spell on Charley.
An ancient curse plagues the town; aliens plot to dominate the world.
An alien becomes a student; a shy neighbor helps save the town.
The Whirling Void confuses the town; garden gnomes vanish.
A villain steals the town's dogs; Mona creates a dinosaur.
A comic book villain stalks the town; a game takes control of children's lives.
The gang sets out to retrieve a hat; a rival sends a robot to baby-sit for Belinda.
Charley's microwave invention sees the future; Mona's father's golf opponent is aided by a ghost.
Mona thinks she hears the Swamp Thing; Mona helps Miss Gotto clean her new house.
The gang befriends a violinist; a teacher moves into a haunted house.
Neptune discovers the missing continent of Atlantis; Shadflies make an early appearance.
The circus is being haunted by the ghost of the flying trapeze; officer Halcroft has a showdown with his old nemesis at the bowling alley.
Mona explores the pottery studio; Lily flushes Charley's Mer-monkeys down the drain.
Family of aliens with identical triplet sons; prank happy Coyote god on the loose.
Mona discovers who is behind recent shark sightings; the cats in town start disappearing.
Misfortunes occur to everyone who goes to the fortune teller; the owner of a local health food store is kidnapped.
Charley awakens the Viking god Thor; Mona, Lily and Charley must stop their substitute music teacher from transforming everyone in town.
MONA THE VAMPIRE: MEDUSA'S REVENGE/THE FEARSOME FORECASTS MEDUSA'S REVENGE There's a local garter snake population explosion. THE FEARSOME FORECASTS The new weatherman is too good at his job! Stars Emma TaylorIsherwood, Carrie Finlay. (CC)
The Seville Theater is being haunted; Mona thinks a yeti is inhabiting a ski hill.
The kids' moms may be turned into reptiles; vacuum salesman is sucking up ghosts.
A substitute teacher turns out to be a robot who wants to take over the school; after they run into a maniacal wizard, everything they imagine comes true.
Awakening a sandman; Count Von Kreepsula and Dr. Nefarious are missing.
The kids uncover a plot to enslave the town; George's rough ride on a haunted bus.
Mona's antique jack-in-the-box spawns a trouble-making boy named Jack; cornfield crop circles foretell an imminent alien invasion.
A creature lives in a house's plumbing; Mona thinks the principal is a werewolf.
Mona becomes a costume competition finalist; a ray gun shrinks Mona and Charlie.
A spirit stalks children's dreams; a childhood nemesis haunts Charlie.
A teacher becomes a voodoo victim; underpants haunt a laundromat.