A spin-off anthology series, The Unbelievable Unfortunately Mostly Unreadable and Nearly Unpublishable Untold Tales of I Hate Fairyland!, with stories written and illustrated by an alternating lineup of creators, has also been published since 2021.

According to a Paste interview, Skottie Young first developed the concept while working on 2009's The Wonderful Wizard of Oz limited series at Marvel Comics, with the idea that Dorothy would eventually "be super annoyed by all these characters.

The revived series will still be published by Image Comics and written by Young, and was initially set to feature Brett Parson as the new primary artist.

Since the announcement, short side stories illustrated by other artists, collected as The Unbelievable Unfortunately Mostly Unreadable and Nearly Unpublishable Untold Tales of I Hate Fairyland, have been released as timed exclusives for subscribers of Young's Substack newsletter.

She spends 27 years looking for a key to escape with her assigned insect guide Larrigton Wentsworth III, or Larry for short, but never ages, resulting in her becoming a violent sociopath.

While meeting with Pervis Peddlesteal, an anthropomorphic rat who collects artefacts from Earth, she encounters Duncan, a human boy dressed in a dragon Halloween costume recently arrived in Fairyland.

Duncan joins Gert on her travels, however, she willingly abandons him in the Tower of Battle, a gigantic arcade machine populated by powerful fighters.

One hundred years later, Duncan has become an actual giant dragon and lays waste to Fairyland, killing all but a small handful of survivors, including Gert and Larry.

After being led to the god-run nightclub Wic + Div by Tony Chu, Gert sets off a battle royale between the various superheroes and villains within, stealing their weaponry in the process, before seeking out the aid of Spawn to give her access to the Image Central building.

However, Larry tells her of a mysterious labyrinth which could hold the secret to helping her become good, and concedes that, as miserable as his life with Gert has been, it probably would have been even worse had they never met.

Despite Duncan demonstrating the newly acquired draconic powers of flight and fire breathing, Gertrude easily defeats him and touches the Balls of Redemption, becoming a perfectly good and sweet child similar to Happy.

The newly good Gert makes quick progress in her quest, prompting Horribella to hire the deadliest assassins in Fairyland to stop her on behalf of an unseen "Ruler of All That is Dark".

The Council then appears, angry because Gert didn't kill Cloudia (despite the fact that she technically fulfilled their request) and threatening to exile her to a remote place in Fairyland, until Gertrude reminds them that she still has their combined magic inside her and would use it to kill them unless they honor their part of the deal, and the fearful Council quickly sends her back home, much to Larry's sorrow.

Back on Earth, Gert, now an adult woman in her thirties, finds herself employed as a clerk in a television station, ironically frustrated by her mundane job and looking for a way to return.

The now adult Gert is unable to keep a job, as she lacks any education or skills applicable to the real world, and misses Fairyland where she was notorious and feared.

After she is beaten up in a bar and dumped in an alley, a tech billionaire named William Wiggins hires her to find his missing son, who he believes has been taken to Fairyland.

Gert agrees, in exchange for half the profits from the planet-wide theme park that Wiggins intends to build on Fairyland once the expedition is complete.

Gert, Rotwald and Virgil are finally able to complete a series of fetch quests to reach the end of the Inferno and obtain a ticket into Fairyland.

[7] National Public Radio's Etelka Lehocky described it as "a great palate cleanser for anyone who's recoiled from pink-princess politics" and praised "Young's clever storytelling".

[10] I Hate Fairyland has been cited by French cartoonist François Locufier as the inspiration for his webtoon series Geraldine & Mona, which began development as a fan-fiction sequel to Sadly Never After, featuring Gert having a daughter.