World's Worst Time Machine
Sale price
$1139
Chapter Book · Ages 7–11 · 2025

World's Worst Time Machine

By Dustin Brady, Dave Bardin (Illustrator)

Book #3 in the World's Worst Time Machine series

A time machine, hidden secrets, and a quest to uncover truth. What if everything you know is a lie?

4.6/5 Goodreads · 9 ratings
240 pages
$11.99Save 5%

In stock. Also at Amazon or Bookshop.

Bookroo's summary

Elsa and Liam embark on a wild quest to find the elusive Professor Snellenburg and unravel the mysteries of his time machine. Their journey begins with the enigmatic Voynich Manuscript and leads them to an alternate dimension. Alongside a geologist named Dwayne, they uncover the origins of time slime. With the World's Worst Time Machine, they venture to the center of time itself. As they close in on the truth, their world flips upside down. Who's the real hero, and what if everything they believed is a lie?

From the publisher

The $3 time machine strikes again in this third and final installment in the series perfect for fans who love funny, unexpected adventures and wacky plot twists from best-selling author Dustin Brady. Professor Snellenburg is a mysterious man. What’s the real story behind his time machine? What does the villainous Queen want with him? And where is he now? To find the professor, Elsa and Liam will need to start digging up answers to these long-buried secrets. Their search starts with the Voynich Manuscript–a book from the Middle Ages that puzzles historians and codebreakers to this day. They’ll travel to an alternate dimension, where they’ll meet Dwayne “The Rock” Johnson (the geologist, not the wrestler) and discover the shocking origin of time slime. Finally, with the help of the World’s Worst Time Machine, they’ll attempt a journey to the very center of time. As the kids close in on the answers they’ve been seeking, their world begins turning upside down. Who’s the hero of this story? Who’s the villain? And what happens when you find out that everything you thought you knew was a lie?

At a glance
Format
Pages
240
Reading age
7–11
Audience
Juvenile Reader
Lexile
570L
For readers who can't stop at one

The next favorite is already out there.

Age-appropriate books selected to help their love of reading grow, delivered right to their door.

Find their book club
Bookroo club box with books for growing readers
More from the creator

More from these creatives

Explore Dustin's bookshelf
Trapped in a Video Game
#1 in Series
Sale price
$999

Trapped in a Video Game

Ages 8–10 · 2016
Sale price
$1199

The Secret of Phantom Island

Ages 8–12 · 2020

Peter Powers and the Itchy Insect Invasion!

Ages 6–10 · 2017
Sale price
$899

Leila & Nugget Mystery

Ages 7–9 · 2022
The series

The World's Worst Time Machine series

See the whole series
World's Worst Time Machine
#1 in Series
Graphic Nov.
Sale price
$999

World's Worst Time Machine

Ages 7–11 · 2023

Treasure in the White City

Ages 7–11 · 2024
Your next read

Books that feel like this one

See all similar books

Letters from Father Christmas

1976

Daisy and the Trouble with Coconuts

Ages 6–9 · 2012
Sale price
$1299

Spectacular Stories for Curious Kids

Ages 8–12 · 2021

These Unlucky Stars

Ages 8–11 · 2021

A Room Full of Chocolate

Ages 7–11 · 2014

The Ultimate Dinopedia

Ages 7–10 · 2010

A Horse for Kate

Ages 8–12 · 2015

The Ology

Ages 7–11 · 2015
The fine print

Book details

Reading levels
ATOS
~3.7
F&P level
~O
Publication
Published
April 29, 2025
Edition
Language
English
Type
Chapter Book
Identifiers
ISBN
9781524890377

Surprise a reader with their next favorite book.

Spotted a mistake or something missing? Improve this page.

Are you the author or illustrator? Claim your book.

Top contributors: Literary Leslie

Bookroo

Book Clubs

Follow Bookroo