Arthurian Legend with a Twist:
* The Mists of Avalon by Marion Zimmer Bradley: A feminist retelling of the Arthurian legends from the perspectives of the women in King Arthur's life.
* The Once and Future King by T.H. White: A classic retelling of the Arthurian legends, exploring the themes of chivalry, power, and personal growth.
* The Sword in the Stone by T.H. White: A charming and humorous account of Arthur's childhood and his training under the wizard Merlin.
* The Kingkiller Chronicle by Patrick Rothfuss: Though not directly Arthurian, this fantasy series features a skilled swordsman, a magical world, and themes of destiny and storytelling.
Time Travel and Alternate History:
* The Time Traveler's Wife by Audrey Niffenegger: A romantic time travel story that explores the challenges and complexities of a love that defies the boundaries of time.
* The 11th Hour by James Rollins: This adventure thriller features a time travel conspiracy and a race against time to prevent a catastrophic event.
* The Chronicles of St. Mary's by Jodi Taylor: This humorous time travel series follows a historian who accidentally becomes a time traveler and gets involved in various historical escapades.
* The Outlander by Diana Gabaldon: A historical romance with elements of time travel, exploring the clash of two different time periods.
Coming-of-Age and Fantasy:
* The Lord of the Rings by J.R.R. Tolkien: A classic fantasy epic featuring a group of young heroes who embark on a perilous journey to destroy the One Ring.
* A Song of Ice and Fire by George R.R. Martin: A complex and gritty fantasy series featuring a cast of characters who navigate political intrigue, war, and magic.
* The Chronicles of Narnia by C.S. Lewis: A beloved series of fantasy novels for children and adults, exploring themes of good vs. evil, faith, and the power of imagination.
* The Spiderwick Chronicles by Tony DiTerlizzi and Holly Black: This middle-grade series features three siblings who discover a magical world hidden in plain sight.
Other Recommendations:
* The Bartimaeus Sequence by Jonathan Stroud: A magical series that follows a young magician and his powerful djinn as they navigate a world of ancient magic and political intrigue.
* The Earthsea Cycle by Ursula K. Le Guin: A classic fantasy series that explores themes of magic, identity, and the search for self-discovery.
These are just a few suggestions, and there are many other fiction series out there that may appeal to readers who enjoyed "Pendragon." It is important to consider what specific elements of "Pendragon" you enjoyed most and look for series that share those characteristics.