The 13-Story Treehouse: Monkey Mayhem!

Andy and Terry write books together while they live in every young boy’s dream—a 13-story treehouse! The treehouse is the most amazing treehouse in the world—complete with a bowling alley, a see-through swimming pool, a marshmallow machine that follows you around and shoots marshmallows in your mouth, a secret underground laboratory, swinging vines, a tank of man-eating sharks, and an endless lemonade fountain. It seems like the fun never ends for Andy and Terry.

But when faced with a range of slapstick scenarios, they soon realize they still have not finished their next bestselling book. With the threat of going back to their atrocious old jobs, they must bond together as they fight off a pack of wild monkeys, a giant gorilla, and a sea monster while writing their next book before their deadline. Will Andy and Terry succeed or will they be forced to go back to their old jobs – at the monkey house?

Griffiths and Denton created a silly, funny, and ridiculous story that readers will laugh at from beginning to end. The book also teaches readers about the importance of friendship. Andy and Terry demonstrate the importance of friends working together in order to solve problems. Without each other, they would not be able to survive a giant gorilla, a sea monster attack, or even write a book. Also, the funny black and white illustrations contribute to a positive reading experience and will help engage even the most reluctant readers.

Even though the story is funny, much of the humor comes from bathroom jokes and immature humor. Many of the jokes are inappropriate for young readers, and sometimes the jokes can be cruel and inconsiderate, such as when Terry painted Jill’s cat bright yellow without telling her. These jokes can leave a bad impression on a young audience. Readers will either love or hate The 13-Story Treehouse. Some will find the story laugh-out-loud funny while others will find the repetitious nature of the story and Terry and Andy’s jokes crude and annoying. But in the end, readers who want a story that’s ridiculously outrageous should pick up The 13-story Treehouse.

Sexual Content

  • Terry and a mermaid kiss so he can become a merman.


  • After fighting about Terry’s new invention and their new giant banana, Terry whacks Andy over the head with the banana causing Andy to go unconscious. Terry thought, “I’d killed you!” when Andy wakes up.
  • Andy eavesdrops on the sea monster’s plan to eat Terry. The sea monster thinks, “I’ll lure him down beneath the water, and then his body I will slaughter. Oh how I’ll enjoy devouring him – I’ll tear him apart, limb from limb. I’ll eat his eyes and ears and nose and suck the marrow from his toes.”
  • Terry wards off a wild pack of monkeys with a giant banana. When the monkeys attack, “Terry picked up the giant banana and, holding it like a baseball bat, began whacking back the marshmallows, pens, pencils, erasers, paintbrushes, paints, and monkey poop being hurled in our direction. And then he began knocking the monkeys right out of the tree!”
  • A giant gorilla intentionally squishes Barky the dog. Andy describes, “ the giant gorilla lifted up one of its gigantic feet and stomped on him.”

Drugs and Alcohol

  • None


  • When the marshmallow machine automatically shoots marshmallows into Terry and Andy’s mouth, Andy asks, “How do you shut this stupid thing off?”
  • Andy thinks Terry’s favorite TV show has the “world’s dumbest dog on the world’s dumbest TV show.”
  • Andy says Terry is out of his “tiny, pea-brained, numbskull-sized mind!”


  • None

Spiritual Content

  • None

by Matthew Perkey





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