Who Let the Ghosts Out?
A boy is haunted by friendly ghosts and pursued by an evil spirit.
Book Series · 4 Books
In order from Who Let the Ghosts Out? to Have You Met My Ghoulfriend?.
The Mostly Ghostly series is a set of 4 chapter books by R.L. Stine, published between 2004 and 2006. Written for ages 7–12, most books run about 140 pages.
A boy is haunted by friendly ghosts and pursued by an evil spirit.
4 books · Published 2004–2006
A boy is haunted by friendly ghosts and pursued by an evil spirit.
A summer at Camp Snake Lake pits Max against ghosts, snakes, and a dark secret.
Max must stay awake to prevent a ghostly takeover that threatens his friends' lives.
A ghoul possesses Max, pushing him to the brink. Can he outsmart the sinister force?
There are 4 books in the Mostly Ghostly series. It began with Who Let the Ghosts Out? in 2004, and the newest book, Have You Met My Ghoulfriend?, was published in 2004.
Start with Who Let the Ghosts Out? and follow the series order — the books above are numbered #1 through #4.
The series is best for ages 7–12, based on the age ranges of the individual books.
Who Let the Ghosts Out? (Book #1) is the longest book in the series at 22,968 words (144 pages).
Don't Close Your Eyes! (Book #8) is the shortest at 19,734 words (144 pages).
The people who bring Mostly Ghostly to life.
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