1.Gregor and Boots Discover the Underland: Gregor and his sister Boots accidentally fall through a grate in their laundry room and discover the Underland, a subterranean world filled with giant talking cockroaches, bats, rats, and other creatures.
2.The Prophecy: Gregor learns that he is the prophesied warrior destined to save the Underland from the Dark prophecy calls him the "Overlander" and a powerful rat named Luxa believes he is the one who can defeat The Destroyer, an evil force threatening the Underland.
3.The Journey to Regalia: Gregor, Luxa, and their companions embark on a perilous journey to Regalia, the capital city of the Underland, to seek help from the other creatures and prepare for the battle against The Destroyer.
4.The Challenges and Tests: Along the way, Gregor and his group face numerous challenges and tests. They encounter dangerous creatures, overcome obstacles, and learn more about the Underland and its history.
5.Building Alliances: Gregor forms alliances with various creatures in the Underland, including the spiders, bats, and rats, who join forces to support him in his quest against The Destroyer.
6.The Confrontation with The Destroyer: As Gregor and his allies reach Regalia, they face The Destroyer, a giant, monstrous creature representing the embodiment of darkness and chaos.
The rising action of Gregor the Overlander builds tension, suspense, and excitement as the protagonist and his companions confront challenges and obstacles on their journey to fulfill the prophecy and save the Underland.