Liam Chapman cannot believe his good fortune. He just bought a real, working time machine at a garage sale for $3. Sure, it’s labeled “World’s Worst Time Machine,” but how bad could it be? The time machine, as it turns out, is so much worse than Liam could have imagined. First, it summons Thomas Edison, but not that Thomas Edison. This Thomas Edison is a 10-year-old aspiring gangster from 1933 who demands to be called “Tommy Twinkles” and is also very interested in robbing a bank of the future. 

Legend says that an eccentric millionaire hid a treasure somewhere inside the legendary "White City" at the 1893 World's Fair in Chicago. Elsa and Liam have reason to believe that treasure holds the key to finding Elsa's grandfather who disappeared mysteriously over a year ago. The kids decide to break out the duct tape and twist ties to reassemble the World's Worst Time Machine. They're on the hunt! Liam and Elsa are not the only time travellers after the treasure. Not even close.

Getting sucked into a video game is not as much fun as you’d think. Sure, there are jetpacks, hover tanks, and infinite lives, but what happens when the game starts to turn on you? In this bestselling series, 12-year-old Jesse Rigsby finds out just how dangerous video games—and the people making those games—can be.

A.J. and his friends are starting fourth grade. A new school year means a new teacher, and Miss Banks may be their weirdest one yet. She won’t stop playing practical jokes on the class, and A.J. has reached his breaking point. Will he and the gang learn to not fall for their teacher’s tricks? Or will Miss Banks prevail as the ultimate prankster?

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! This collection includes Detective Camp, Mayflower Treasure Hunt, White House White-Out, and Sleepy Hollow Sleepover.