Recommendations based on "Griffin's Castle"

A debut novel full of magic, adventure, and romance, The Book of Doors opens up a thrilling world of contemporary fantasy for readers of The Midnight Library, The Invisible Life of Addie Larue, The Night Circus, and any modern story that mixes the wonder of the unknown with just a tinge of darkness.Cassie Andrews works in a New York City bookshop, shelving books, making coffee for customers, and living an unassuming, ordinary life. Until the day one of her favorite customers—a lonely yet charming old man—dies right in front of her. Cassie is devastated. She always loved his stories, and now she has nothing to remember him by. Nothing but the last book he was reading.But this is no ordinary book…It is the Book of Doors.Inscribed with enigmatic words and mysterious drawings, it promises Cassie that any door is every door. You just need to know how to open them.Then she’s approached by a gaunt stranger in a rumpled black suit with a Scottish brogue who calls himself Drummond Fox. He’s a librarian who keeps watch over a unique set of rare volumes. The tome now in Cassie’s possession is not the only book with great power, but it is the one most coveted by those who collect them.Now Cassie is being hunted by those few who know of the Special Books. With only her roommate Izzy to confide in, she has to decide if she will help the mysterious and haunted Drummond protect the Book of Doors—and the other books in his secret library’s care—from those who will do evil. Because only Drummond knows where the unique library is and only Cassie’s book can get them there.But there are those willing to kill to obtain those secrets. And a dark force—in the form of a shadowy, sadistic woman—is at the very top of that list.

A tale of dark secrets, deep love, and dangerous magic!Since childhood, Sabriel has lived outside the walls of the Old Kingdom, away from the random power of Free Magic, and away from the Dead who refuse to stay dead. But now her father, the Charter-Mage Abhorsen, is missing, and to find him Sabriel must cross back into that world. With Mogget, whose feline form hides a powerful, perhaps malevolent spirit, and Touchstone, a young Charter Mage, Sabriel travels deep into the Old Kingdom. There she confronts an evil that threatens much more than her life--and comes face-to-face with her own hidden destiny.

Skulduggery Pleasant and Valkyrie Cain's whole world is turning upside down. With Valkyrie struggling to protect her dark secret, Skulduggery and the gang are more vulnerable than ever, just as a plague of bodysnatching Remnants are released upon the world.

The fifth book in the internationally bestselling Septimus Heap series by Angie Sage, featuring the funny and fantastic adventures of a wizard apprentice and his quest to become an ExtraOrdinary Wizard. New York Times Bestselling Series “In Sage’s most thrilling book yet, a new host of characters appear, giving the complex plot even more sparkle.” —VOYA (starred review) “Once again, Sage’s tale combines humor, adventure, and inventive storytelling and is sure to please her many fans.”—ALA Booklist “Syren is Sage at her best; it’s full of fun, adventure, humor, irony, friendship, loyalty and nonstop action” —School Library Journal In this epic Magykal installment, Septimus ends up on a captivatingly beautiful island, one of seven set in a sparkling sea. He's stranded there with his badly injured dragon, Spit Fyre, along with Jenna and Beetle. There are some strange things about the island, including a Magykal girl named Syrah, a cat-shaped lighthouse that has lost its Light, and an eerie presence that sings to Septimus—can he escape the persistent call? Trouble is also brewing for Lucy and Wolf Boy, who have become entangled with some nefarious sailors at sea, and for Milo Banda, Jenna's father, who is harboring a mysterious treasure chest in his ship's hold. Charismatic storyteller Angie Sage continues Septimus Heap's Magykal journey with more laugh-out-loud adventures, more enchanting charms and spells, and an ever-deepening understanding of the interior life of a young hero.

The Magic Thief: Home, the fourth book in the acclaimed Magic Thief series, finds new wizard Conn back where he started—accused of being a thief. Despite successfully securing a balance between the competing magics of Wellmet, Conn is not happy. Duchess Rowan has promoted him to ducal magister, but the other wizards see him only as a thief. But something sinister is brewing, as magicians' locus stones are being stolen and magical spells are going awry. As Conn faces old enemies and powerful magical forces, is he strong enough to save the city he calls home? Diana Wynne Jones, author of Howl's Moving Castle, praised this middle grade fantasy series filled with magic and wonder, saying of the first book: "I couldn't put it down. Wonderful, exciting stuff."

Return to the secret city in the sky, in the second soaring adventure in the thrilling Starminster trilogy. Astrid has her wings at last. But unlike all her Starminster classmates, she can't get them to work, no matter how hard she tries. Soon, the formidable new headmistress issues a warning: Astrid must learn to fly, or leave London Overhead forever. Then the Month of Birthdays arrives, bringing circus shows, rollercoasters, mountains of cake - and a legendary series of games, with a prize beyond Astrid's wildest dreams. Astrid knows she has to win; it's the only way she can fix her wings, and secure her home in London Overhead. But the games are far more dangerous than she could ever have imagined - and someone is out to ensure Astrid never makes it to the end.

The second action-packed quest in an exciting new six book character-led series for 7+ girls who love fantasy, adventure, and high-kicking heroines! This time, Sophie has to call upon all her strength and skills to defeat her most gruesome foe yet... THE SWAMP BOGGLES! Very few people ever enter the Shadow Woods, for these woods are like no others. Hidden deep within them is the Gateway to the Shadow Realm - a dark and chaotic world where all kinds of gruesome creatures live... On her tenth birthday, tomboy Sophie learns she is the Guardian of the magical gateway, and that her destiny is to protect the human world from the goblins, trolls and evil sprites that inhabit the Shadow Woods. Together with her brave best friend and loyal sidekick, Sam, Sophie must find a way to stop an invasion of disgusting slime-filled, stinky Swamp Boggles from causing mayhem in her town and it'll take all of Sophie's Guardian magic powers to defeat it!

The fifth action-packed quest in an exciting new six book character-led series for 7+ girls who love fantasy, adventure, and high-kicking heroines! Very few people ever enter the Shadow Woods, for these woods are like no others. Hidden deep within them is the Gateway to the Shadow Realm - a dark and chaotic world where all kinds of gruesome creatures live... On her tenth birthday, tomboy Sophie learns she is the Guardian of the magical gateway, and that her destiny is to protect the human world from the goblins, trolls and evil sprites that inhabit the Shadow Woods. Each book sees Sophie having to outwit weird and terrifying creatures from the Shadow Woods, and in this fifth action-packed adventure, it's the turn of the nasty Icicle Imps! This Shadow Creature may look like a fluffy snowball on legs but Sophie quickly learns that appearances can be deceptive Stand between them and a Shadow gem and watch the Imps turn into mini-monsters with razor sharp fangs and teardrops that turn into daggers of ice! When the Imps run amok at Sophie's town's summer fete, Sophie has to think on her feet and stretch her Guardian powers to the limit.

In the second magical volume of the Enchanter’s Child duology, the bestselling author of the Septimus Heap series, Angie Sage, crafts a stunning finale filled with humor, drama, and nonstop action, just right for fantasy-adventure lovers. In the first book of the Enchanter’s Child duology, Alex discovered the truth: Not only does she possess magical powers but her father is Hagos RavenStarr, who was once the king’s Enchanter. Alex is pursued by the fiendish Twilight Hauntings, monstrous Enchantments created because a prophecy foretold the king’s death at the hands of an Enchanter’s Child. The Twilight Hauntings are designed to rid the land of all Enchanters and their children, but Alex has other ideas. Why should she be forced to leave the place where she belongs? So now Alex is on a mission to destroy the Twilight Hauntings. And to do so she must find the very thing that created them—a magical talisman called the Tau. But where is it? In her search for the Tau, Alex enlists the reluctant help of her father and a strange assortment of people along the way. As she travels, Alex hones her magical skills and learns that even family and friends can surprise her. Praise for the first book in the Enchanter’s Child duology, Twilight Hauntings: "Intricate worldbuilding, richly evocative settings, nuanced characters, deftly woven plotting, and wry humor. An unmitigated delight." —Kirkus Reviews (starred review) "Fans of fantasy and adventure will snap this up and eagerly await the sequel." —School Library Journal (starred review) "Sage deftly crafts an endearing and familiar fantasy story, expertly characterizing distinct, extreme personalities. Fantasy fans will highly anticipate the next steps in Alex’s journey in the projected sequel of the Enchanter’s Child duology." —Bulletin of the Center for Children's Books