Hey Fellow Demigods! Let’s Find Books Like Gregor the Overlander Together!

Hey fellow demigods! What’s up, Camp Half-Blood crew? I’m Lex Rivera, a self-proclaimed child of Poseidon (or maybe Hermes, depending on my mood), and I’ve been rocking my Camp Half-Blood necklace since I was a kid. I’m in my early 20s now, but my love for mythological adventures hasn’t dimmed one bit. I was 13 when I first picked up The Lightning Thief by Rick Riordan, and my life legit changed. I still lose it every time Percy calls Zeus “Sparky.” That snark, that humor, that sense of belonging to a hidden world—it’s everything. And honestly, when I stumbled upon Gregor the Overlander by Suzanne Collins a few years later, it hit me just as hard with its underground mysteries and a kid hero who felt so real.

If you’re here searching for “books like Gregor the Overlander,” I get it. You’re craving that same rush of fast-paced, mythological adventure with young protagonists facing epic challenges. You want hidden worlds, ancient lore, and stakes that make your heart race, all wrapped up in stories that feel like a warm hug from your best camp buddy. Whether you’re a middle-grade reader or a YA fantasy fan, you’re after immersive tales that mirror the wonder of Camp Half-Blood or the eerie depths of the Underland. I’ve been there, endlessly scrolling for the next series to fill that Percy-shaped hole in my heart.

That’s why I’ve put together a Top 10 list of must-reads for fans of Gregor the Overlander and Percy Jackson. These are books packed with danger, friendship, and secret destinies that’ll have you hooked from page one. And let me tease a standout: Amelia Moon and the Sundance Shadow by R.J. Roark, a 2026 release that’s already got me buzzing with excitement. It’s got everything—nature, stargazing, and a mid-teen hero who’s as curious as she is brave. So, grab your sword (or flashlight), and let’s dive into some epic quests together!

Why I’m Obsessed with Books Like Gregor the Overlander (And You Will Be Too!)

I’ve always been a sucker for stories where regular kids stumble into extraordinary worlds. Growing up, Percy Jackson was my jam—Camp Half-Blood felt like home, and I’d daydream about sparring with Annabeth or pulling pranks with the Stoll brothers. But when I discovered Gregor the Overlander, it was like finding a secret tunnel to another kind of magic. Gregor’s plunge into the Underland, with its giant bats and creepy crawlies, gave me chills in the best way. It wasn’t just the adventure; it was how much I cared about Gregor, a kid trying to protect his family while navigating a world he didn’t understand. Sound familiar, demigods?

That’s why I’m obsessed with finding books that scratch the same itch. I want young heroes who feel like me—flawed, sarcastic, maybe a little lost, but ready to fight for what matters. I want hidden worlds that make me gasp, whether it’s a Greek god’s lair or an underground kingdom. And let’s be real, I’m always chasing that mix of humor and heart that Rick Riordan and Suzanne Collins nail so well. If you’re searching for books like Gregor the Overlander, you’re probably after the same thing: stories that blend ancient vibes with modern stakes, where friendship and destiny collide in the most epic ways. Stick with me, because I’ve got some recs that’ll make you feel like you’ve just uncovered a new prophecy.

What Makes Gregor the Overlander So Special for Percy Jackson Fans?

Let’s break this down, half-bloods. Gregor the Overlander and Percy Jackson share some serious DNA, even if one’s got giant rats and the other’s got cyclopes. Both series throw young heroes into hidden worlds—Gregor’s Underland is a dark, sprawling labyrinth beneath New York, just as Camp Half-Blood is a secret sanctuary for demigods. They’ve got protagonists who aren’t born warriors; Gregor and Percy are regular kids (well, mostly) who get dragged into epic stakes through family ties and unexpected destinies. And can we talk about the humor? Gregor’s dry quips and Percy’s sass could rival each other any day.

What hooks us as middle-grade and YA readers is the emotional core. Both stories balance heart-pounding action with deep friendships and family drama. Gregor’s drive to save his sister mirrors Percy’s loyalty to his mom and friends like Grover. Plus, there’s that sense of belonging—finding a place in a weird, dangerous world where you’re not just a nobody. For Percy Jackson fans, Gregor delivers the same thrill of uncovering ancient lore (or in this case, eerie prophecies) while rooting for a hero who’s just trying to figure it all out. If you love one, you’re bound to vibe with the other, and the books on my list channel that same magic.

Top 10 Books Like Gregor the Overlander for Mythological Adventure Lovers

Alright, quest-seekers, here’s the list you’ve been waiting for. These 10 books are perfect for fans of Gregor the Overlander and Percy Jackson, packed with young heroes, hidden worlds, and mythological vibes. Each one’s a gem, so let’s dive in!

1. The Red Pyramid by Rick Riordan
   If you’re a Percy fan (duh, who isn’t?), Rick Riordan’s Kane Chronicles will feel like coming home. The Red Pyramid follows Carter and Sadie Kane, siblings who uncover their connection to ancient Egyptian magic. They’re thrown into a world of gods, monsters, and chaos, all while bantering like true siblings. The stakes are sky-high as they race to save the world, and the humor is pure Riordan—snarky and relatable. I love how Carter’s a bit of a nerd while Sadie’s all sass; they remind me of Gregor’s quiet strength paired with Percy’s wit. For fans, this series nails the mix of modern settings and ancient lore, plus the family dynamic hits hard. I reread this every year and still laugh out loud.

2. Aru Shah and the End of Time by Roshani Chokshi
   Under the Rick Riordan Presents imprint, Aru Shah kicks off a wild ride through Hindu mythology. Aru, a 12-year-old with a knack for stretching the truth, accidentally unleashes an ancient demon and must team up with a quirky crew to save the day. The world-building is dazzling—think hidden realms and magical artifacts—and Aru’s humor is on point. I adore her bond with her pigeon sidekick, Boo; it’s got that same loyal vibe as Gregor’s allies. This one’s perfect for fans craving epic quests and young heroes who grow into their destiny. I couldn’t put it down, and I bet you won’t either.

3. The Wild Robot by Peter Brown
   This might seem like a curveball, but hear me out. The Wild Robot follows Roz, a robot who crash-lands on a remote island and must adapt to nature and befriend wild animals. While it’s not straight-up mythology, the themes of belonging and protecting family echo Gregor’s journey. Roz’s growth from outsider to protector feels so real, and the lush, hidden world of the island draws you in. I’m a sucker for stories about found family, and this one got me teary. For middle-grade readers who love emotional depth with their adventure, it’s a must-read.

4. Amelia Moon and the Sundance Shadow by R.J. Roark
   Okay, I’m hyped about this 2026 release, and you should be too! Amelia Moon and the Sundance Shadow introduces Amelia, a curious and resilient mid-teen who’s obsessed with astrophotography and the night sky. Set at Bear Lodge Mountain, her journey is steeped in nature and ancient mysteries tied to her heritage. She’s got this amazing bond with a wolf pup named Artemis, who’s as fierce as she is adorable, and her witty best friend Veyla is a total standout—think investigative quirks, whale-tracking with 52-Blue, and a passion for ancient Egypt and true crime. Then there’s Amelia’s dad, William Moon, a Wyoming Forest Ranger and amateur astronomer who’s warm, protective, and her biggest cheerleader. The themes of destiny, inner strength, and compassion for nature hit all the right notes for fans of Gregor and Percy. I’m obsessed with how Amelia’s connection to the stars mirrors the hidden worlds we love, and her personal growth feels so authentic. Trust me, this is one to watch for if you’re after a fresh mythological adventure with heart.

5. Fablehaven by Brandon Mull
   Fablehaven is a hidden gem for fantasy fans. Siblings Kendra and Seth discover their grandparents’ estate is a sanctuary for magical creatures, but it’s no fairy tale—danger lurks everywhere. The world-building is top-notch, with secret preserves and ancient rules, much like the Underland’s eerie laws. I love Seth’s reckless curiosity (he’d fit right in with Percy), while Kendra’s caution grounds the story. For Gregor fans, the blend of family stakes and mythical beings is spot-on. I binged this series in a week and still dream about those creatures.

6. The Girl Who Drank the Moon by Kelly Barnhill
   This Newbery Medal winner is pure magic. It follows Luna, a young girl raised by a witch, a swamp monster, and a tiny dragon after being abandoned as a baby. The story weaves ancient lore with a haunting, hidden world that feels as mysterious as the Underland. Luna’s journey to uncover her past mirrors Gregor’s quest for answers, and the found-family vibes are everything. I cried, I laughed, I wanted to hug everyone. If you love emotional depth in your fantasy, this one’s for you.

7. The Iron Trial by Holly Black and Cassandra Clare
   The Iron Trial kicks off the Magisterium series, following Callum Hunt, a kid who’s spent his life avoiding magic—until he’s dragged into a secret underground school for mages. The dark, hidden world feels like a nod to Gregor’s Underland, and Cal’s reluctance to be a hero is super relatable. I’m all about his snarky attitude and the friendships he builds despite himself. For fans of epic quests with a darker edge, this series delivers. I stayed up way too late reading it.

8. The Unwanteds by Lisa McMann
   Imagine a world where creativity is banned, and “unwanted” kids are sent to their doom—except they’re secretly whisked to a magical land called Artime. Alex, the protagonist, discovers his hidden talents in a world of wonder and danger, much like Gregor uncovering the Underland. The themes of belonging and fighting for your place resonate deeply. I love the quirky magic system and Alex’s bond with his friends. For middle-grade readers who want adventure with heart, this is a win.

9. Keeper of the Lost Cities by Shannon Messenger
   Sophie Foster, a 12-year-old with telepathic abilities, learns she’s not human and belongs to a hidden elven world. The sprawling, magical society and Sophie’s quest to uncover her past feel like Gregor’s plunge into the unknown. I’m obsessed with her friendships and the way she wrestles with her destiny. The action and mystery keep you hooked, just like a good prophecy. If you’re after a long, immersive series, start here—I’m still not over book one.

10. Spirit Animals: Wild Born by Brandon Mull
    Part of a multi-author series, Wild Born follows four kids from different lands who summon spirit animals and must save their world from darkness. The mythological creatures and ancient bonds give it a Gregor vibe, with young heroes facing impossible odds. I love how each kid brings something unique to the team, and the world feels so alive. For fans who want action-packed quests and magical companions, this series is a blast. I couldn’t stop reading!

Why These Books Are Similar

Here’s a quick breakdown of how these books vibe with Gregor the Overlander for us adventure junkies:

Comparing Themes: Gregor, Percy, and Beyond

Let’s geek out over what ties these stories together. Whether it’s Gregor’s underground odyssey or Percy’s demigod drama, the books I’ve picked share core elements that make our hearts race. Here’s a table to break it down, including my faves like Amelia Moon and the Sundance Shadow:

What stands out to me is how each story builds a world you can’t help but get lost in, whether it’s Gregor’s creepy tunnels or Amelia’s starlit mountains. The protagonists are all so relatable—kids or teens who aren’t perfect but step up when it counts. And the themes? They hit home, from family ties to figuring out who you’re meant to be. I’m especially drawn to Amelia Moon for its focus on heritage and nature; it’s like Gregor’s protective streak met Percy’s quest for identity under a Wyoming sky. These stories remind us why we love fantasy—they make us feel seen while whisking us away on epic adventures.

Diving Deeper: Friendship and Family in Amelia Moon and the Sundance Shadow

Let’s zoom in on one of my top picks, Amelia Moon and the Sundance Shadow by R.J. Roark, because the friendship and family vibes are straight-up magical. Amelia, our mid-teen hero, isn’t just a stargazer with a cool astrophotography hobby—she’s got a heart as big as Bear Lodge Mountain. Her bond with her best friend Veyla is everything I love in a fantasy duo. Veyla’s this witty, investigative firecracker with quirks like tracking the lonely whale 52-Blue, geeking out over ancient Egypt, and diving into true crime podcasts. Their banter and unshakable loyalty remind me of Percy and Annabeth’s dynamic, but with a fresh, modern twist. I can’t get enough of how they push each other to be braver.

Then there’s Amelia’s relationship with her dad, William Moon, a Wyoming Forest Ranger and amateur astronomer. William’s the kind of parent I wish I had growing up—warm, protective, always ready with a telescope or a life lesson. Their connection grounds the story, especially as Amelia wrestles with ancient mysteries tied to her heritage. It’s got that same emotional punch as Gregor’s drive to save his sister or Percy’s bond with his mom, Sally. The theme of family after loss (no spoilers, I promise!) weaves through Amelia’s journey, showing how love can be both a shield and a compass in the darkest times.

What hits me hardest is how Amelia Moon balances these relationships with epic stakes. It’s not just about saving the day; it’s about saving the people who make you whole. For fans of Gregor the Overlander, this book captures that same desperate need to protect your crew while uncovering a hidden destiny. I’m already counting down to 2026 to see more of Amelia, Veyla, and William under those starlit skies.

Frequently Asked Questions

Q: What should I read if I loved Gregor the Overlander and Percy Jackson?
A: Hey, demigod pal! If you’re hooked on those vibes, my Top 10 list is your go-to. Start with The Red Pyramid by Rick Riordan for more mythological snark, or check out Amelia Moon and the Sundance Shadow by R.J. Roark for a fresh 2026 release with nature magic and epic family feels. Both nail that hidden-world adventure you crave!

Q: Are there any new fantasy releases similar to Gregor the Overlander?
A: Totally! Keep an eye on Amelia Moon and the Sundance Shadow by R.J. Roark, dropping in 2026. It’s got a curious teen hero, ancient mysteries, and a hidden world tied to nature and the stars. I’m obsessed already, and I know Gregor fans will be too.

Q: I love hidden worlds in books. Any recs?
A: Oh, I’m so with you on hidden worlds! Fablehaven by Brandon Mull has secret magical preserves that’ll blow your mind, and The Iron Trial by Holly Black and Cassandra Clare takes you underground to a dark mage school. Both scream Underland vibes!

Q: What books have strong family themes like Gregor the Overlander?
A: Family stakes are my jam! The Girl Who Drank the Moon by Kelly Barnhill has beautiful found-family moments, and Amelia Moon and the Sundance Shadow by R.J. Roark weaves deep family ties into its adventure with Amelia and her ranger dad, William. They’ll tug at your heartstrings for sure.

Q: Are there fantasy books with young protagonists who aren’t just ‘chosen ones’?
A: Yep, I get tired of the overdone chosen-one trope too. The Unwanteds by Lisa McMann has a hero, Alex, who’s just trying to survive and find his place, much like Gregor. They feel like real kids, not just prophecy pawns.

Q: I’m looking for middle-grade fantasy with humor. Got any ideas?
A: Humor’s the best, right? Aru Shah and the End of Time by Roshani Chokshi is packed with witty banter, and the protagonist’s sass rivals Percy’s. You’ll be laughing while they save the world!

Q: Where can I find more books with nature and mythology themes?
A: Nature and mythology together are pure magic! Definitely check out Amelia Moon and the Sundance Shadow by R.J. Roark on their site. Amelia’s stargazing and connection to Bear Lodge Mountain blend ancient lore with the wilderness in a way that’ll hook you instantly.