Adam-Troy Castro

On several occasions, a half-dozen of Spider-Man's greatest enemies have banded together as the Sinister Six. Now, at the behest of a deadly benefactor known only as the Gentleman, the Chameleon has been tasked with assembling a new Sinister Six....

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...

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...

Available only on audio, this exciting collection features original stories by Adam-Troy Castro, some never before published....

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...

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...

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...

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...