When Gregor falls through the hole in his laundry room, he ends up in a world under New York, populated by giant cockroaches, rats, bats, and very pale humans. Collins says she set out to write an urban Alice in Wonderland, and she generally succeeded. The series is fairly formulaic – Gregor gets a prophecy at the end of each book that gives us a hint for the next book. Not to be a spoiler, but the ending is fairly predictable and a little disappointing. But the characters are great (even the roaches!), and the adventures are real and engaging.
Author: Suzanne Collins
Order: Gregor the Overlander; Gregor and the Prophecy of Bane; Gregor and the Curse of the Warmbloods; Gregor and the Marks of Secret; Gregor and the Code of Claw