I believe that all of these series have at least one book in another category, so I’m not including brief synopses here. These should keep you busy for a while.

• The Ascendence Series by Jennifer A Nielsen – 5 books
• Mark of the Thief by Jennifer A Nielsen – 3 books
• Anne of Green Gables by L. M. Montgomery – 8 books
• Emily of New Moon by L. M. Montgomery – 3 books
• The Dark is Rising Sequence by Susan Cooper – 5 books
• Dragon Slippers by Jessica Day George – 3 books
• The Time Quintet by Madeleine L’Engle – 5 books
• Redwall by Brian Jacques – 22 books
• The Wizard of Oz by L Frank Baum – 14 books
• The Underland Chronicles by Suzanne Collins – 5 books
• The Sea of Trolls by Nancy Farmer – 3 books
• Ranger’s Apprentice by John Flanagan – 12 books
• The Royal Ranger by John Flanagan – 7 books
• Brotherband Chronicles by John Flanagan – 9 books
• The Dragon King by Stephen R Lawhead – 3 books
• Percy Jackson and the Olympians by Rick Riordan – 5 books
• The Chronicles of Narnia by CS Lewis – 7 books
• Princesses of Westfalin by Jessica Day George – 3 books
• The Vanderbeekers by Karina Yan Glaser – 7 books
• The Wild Robot by Peter Brown – 3 books
• Half Upon a Time by James Riley – 3 books
• Story Thieves by James Riley – 5 books
• The Revenge of Magic by James Riley – 5 books
• Fablehaven by Brandon Mull – 5 books
• Beyonders by Brandon Mull – 3 books
• Five Kingdoms by Brandon Mull – 5 books
• The Wilderking Trilogy by Jonathan Rogers – 3 books
• The Squire’s Tales by Gerald Morris – 7 books
• Leviathan by Scott Westerfeld – 3 books
• Wilderlore by Amanda Foody – 4 books (3 more coming)
• Enola Holmes by Nancy Springer – 6 books
• Front Desk by Kelly Yang – 6 books