From the screenwriter of Academy Award--nominated Puss in Boots and Puss in Boots: The Last Wish comes an inventive middle grade adventure about an interdimensional school for time travelers perfect for fans of the Spy School and Mr. Lemoncello's Library series. When Bertie Wells accidentally creates a black hole in his bedroom in the year 1878, it's the very last thing he expects--except maybe the grown-up who steps out. Darla Marconi dresses and speaks like no one Bertie has met and comes with an offer: Bertie is invited to attend the College of Space Machines, Multiverses, and Other Odd Sciences (COSMOS for short, because no one would go to a school called COSMMOOS).

He is skeptical to say the least but, not having anything better to do, Bertie agrees. His day only gets weirder from there as he's transported to 2022 for his first semester of school. Thankfully, he's not alone--144 years in the future, math whiz Zoe Fuentes just accepted the same invitation, and 550 years in the past, Amelia da Vinci (yes, that da Vinci) has also decided to attend.

The three team up and work together to survive the year, including weathering a time paradox, solving the case of a disappearing dean, and uncovering the truth behind a shady intergalactic secret society. At least time is on their side!