Great-Grandpa's in the Litter Box
A talking tomcat claims to be a great-grandpa needing help.
Book Series · 30 Books
In order from Great-Grandpa's in the Litter Box to It's Itchcraft!.
The Zack Files series is a set of 30 chapter books by Dan Greenburg, published between 1996 and 2003. Written for ages 7–10, most books run about 65 pages.
A talking tomcat claims to be a great-grandpa needing help.
30 books · Published 1996–2003
A talking tomcat claims to be a great-grandpa needing help.
A boy encounters his doppelgänger in a mysterious twist.
A boy's room is haunted, and chaos ensues as objects move mysteriously.
A boy discovers he can read minds after getting an electric shock in science class and must navigate this new ability while trying to uncover a potential murderer in his school
A routine dental visit turns into a wild encounter with a mad scientist.
Two boys master astral travel but struggle to return to their bodies.
A museum visit turns eerie when an Egyptian cat statue comes to life.
A boy meets his future son who traveled back in time.
Zack's Hawaiian vacation turns into chaos. Is a cursed lava rock to blame?
A clone solves problems but may become the biggest one.
A boy discovers he can talk to dolphins. Can they uncover a sunken treasure together?
A hypnotist's show leaves Zack sharing his body with a stubborn spirit.
Fortune cookies predict chaos. Is this Zack's unlucky break?
Zack hears Elvis from the fridge. Is he a turnip?
An alien's ship needs fuel, but the NYPD has it. Can Zack help?
Shrunken Zack faces an ant army and their pharaoh-queen.
A metal detector reverses time, making Grandma younger each day.
A computer glitch sends Zack to a medieval school for dragon slayers.
A sleep-away camp's creature legend becomes a terrifying reality.
A bite makes Zack rhyme nonstop. How will he break the spell?
Zack's evening with a horror star reveals chilling secrets. Is Mella a real vampire?
A long-dead queen takes over Zack's body, causing chaos and conflict.
A dinosaur egg, a microwave, and chaos ensues.
Grandma surprises everyone by playing in a White Sox game.
Locked in a museum, a boy uncovers prehistoric secrets and chaos.
Zack encounters a teenage mummy. What ancient secrets will unravel?
Is Zack's substitute teacher a werewolf or just eccentric?
A liar's fibs lead to an unexpected, growing consequence. Can he stop it?
A mysterious blob grows uncontrollably. Can two boys stop it before it devours everything?
A boy's Halloween dance date is a time-traveling girl fleeing the Salem witch trials.
There are 30 books in the Zack Files series. It began with Great-Grandpa's in the Litter Box in 1996, and the newest book, It's Itchcraft!, was published in 2003.
Start with Great-Grandpa's in the Litter Box and follow the series order — the books above are numbered #1 through #30.
The series is best for ages 7–10, based on the age ranges of the individual books.
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