There are 4 books in the Once Upon a Tim series. The newest book is The Quest of Danger which came out in 2023.

1
Once Upon a Tim

By Stuart Gibbs , Stacy Curtis (illustrator) ,

Book cover of Once Upon a Tim
Join New York Times bestselling author Stuart Gibbs in this first book in a hilarious, highly illustrated new middle grade series about a peasant boy who wants to be a knight, perfect for fans of Max & the Midknights.

Tim is just a peasant, but he dreams big. He wants…
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2
The Labyrinth of Doom

By Stuart Gibbs , Stacy Curtis (illustrator) ,

Book cover of The Labyrinth of Doom
Knight-in-training Tim and his best friend, Belinda, embark on a quest to save Princess Grace in this second book in the hilarious, highly illustrated Once Upon a Tim middle grade series from New York Times bestselling author Stuart Gibbs.

Prince Ruprecht is VERY UPSET that knights-in-training, Tim and Belinda, have…

3
The Sea of Terror

By Stuart Gibbs , Stacy Curtis (illustrator) ,

Book cover of The Sea of Terror
Join Tim and his friends on a treacherous journey across the seas in the laugh-out-loud funny, highly illustrated third book of the New York Times bestselling Once Upon a Tim series from Spy School author Stuart Gibbs.

After helping Princess Grace foil the villainous Prince Ruprecht—twice!—junior knights Tim, Belinda, and…

4
The Quest of Danger

By Stuart Gibbs , Stacy Curtis (illustrator) ,

The Quest of Danger
Set sail to Atlantis with Tim and his friends in the laugh-out-loud funny, highly illustrated fourth book of the New York Times bestselling Once Upon a Tim series from Spy School author Stuart Gibbs.

Tim and his ragtag crew have been rescued from certain doom by a mermaid princess—but now,…