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Gustav Gloom Series

Adam-Troy Castro and Kristen Margiotta
This darkly imaginative middle grade series follows Gustav and Fernie as they journey to the Shadow Country to save their families from an evil lord.
Gustav Gloom and the People Taker #1 by Adam-Troy Castro; Illustrated by Kristen Margiotta
Gustav Gloom and the Inn of Shadows #5 by Adam-Troy Castro; Illustrated by Kristen Margiotta
Gustav Gloom and the Castle of Fear #6 by Adam-Troy Castro; illustrated by Kristen Margiotta

Gustav Gloom Series : Titles in Order

Book 6
Gustav and Fernie continue their journey through Dark Country in this new title!

In the final installment of Adam-Troy Castro’s creepy Gustav Gloom series, the fate of the Dark Country rests on Gustav and Fernie’s shoulders.  After weeks of traveling on a quest to find their fathers, Fernie and Gustav finally come face-to-face with their nemesis—the evil Lord Obsidian. Filled with heroic action sequences, terrifying chills, and plenty of humor, this final book will keep fans on the edge of their seats.
Book 5
Gustav and Fernie continue their journey through Dark Country!
 Gustav and Fernie’s adventures in the Dark Country continue as they search for their families. But as they get closer to discovering their families’ fates, their mission is once again threatened by old foes—as well as some new, even more treacherous, ones. Will Gustav and Fernie be able to battle their way through and rescue their families before it’s too late?Featuring a unique paper-over-board cover with beautifully dark full-page illustrations by Kristen Margiotta.
Book 4
Gustav and Fernie begin their journey to the Shadow Country to save their fathers!

Fernie and Gustav leave the safety of the Gloom Mansion and begin their long journey to the Shadow Country to save their families from the evil Lord Obsidian. Aided by the magical Cryptic Carousel, Fernie and Gustav travel to lots of exotic locations as they try to locate the Shadow Country, meeting a few new foes along the way.

Featuring a unique paper-over-board cover and beautifully dark full page illustrations by Kristen Margiotta.
Book 3
In Gustav Gloom and the Four Terrors, things are not always what they seem in the Gloom Mansion. Gustav decides that he needs to rescue his father from the Dark Country, but he can’t do that without Fernie’s help. After Gustav convinces Fernie’s safety-conscious father to enter the Gloom Mansion with Fernie and Pearlie, there is a prison break from the Hall of Shadow Criminals and it’s up to Fernie to save her family and Gustav before it’s too late. Featuring a unique paper-over-board cover, a die-cut window with printed acetate, and beautifully dark full-page illustrations by Kristen Margiotta.
Book 2
Hugo Award nominee Adam-Troy Castro’s exciting new world full of shadows and mystery grows in book 2 of the Gustav Gloom series. In Gustav Gloom and the Nightmare Vault, Fernie and Gustav find themselves battling another shadowy foe—The Shadow Eater. He is after one thing, The Nightmare Vault, which his master, the evil Lord Obsidian will use to unleash the most terrifying and threatening shadows into the world. As Fernie and Gustav race to stop the Shadow Eater, Fernie learns about Gustav’s mysterious past and just what happened to his missing parents.

Featuring a unique paper-over-board cover and beautifully dark full page illustrations by Kristen Margiotta, Gustav Gloom is sure to be a hit with fans who, like Fernie, love a little darkness in their lives.
Book 1
Enter an exciting new world of shadows from Hugo Award nominee Adam-Troy Castro. Meet Gustav Gloom.

Fernie What finds herself lost in the Gloom mansion after her cat appears to have been chased there by its own shadow. Fernie discovers a library full of every book that was never written, a gallery of statues that are just plain awkward, and finds herself at dinner watching her own shadow take part in the feast!

Along the way Fernie is chased by the People Taker who is determined to take her to the Shadow Country. It’s up to Fernie and Gustav to stop the People Taker before he takes Fernie’s family.

Featuring a unique cover and beautifully dark full-page illustrations by Kristen Margiotta, Gustav Gloom is sure to be a hit with fans who love a little darkness in their lives.

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