Edensor, the third novel in the Tetralogi Laskar Pelangi series, tells the story of Ikal and Arai's adventures in Europe. After securing scholarships to France, they encounter what many would call culture shock. They face customs and civilizations in Europe that are entirely different from what they understood as Indonesians, especially from the Malay culture.

In this book, Ikal and Arai also reap the karma for mischiefs they committed in their youth. The reader is taken on their journey through Europe with experiences that are astonishing, terrifying, hilarious, and at times, tear-jerking. The desire to climb the peaks of challenges, to break through granite stones of difficulties, to tease the dangers, and to solve mysteries with science is vividly portrayed. They long for a life filled with possibilities reacting with each other like colliding uranium molecules: unpredictable explosions, absorption, binding, duplicating, expanding, disintegrating, and scattering in surprising directions.

They wish to visit distant places, meet diverse languages and people. They want to navigate through fields and deserts, to blister under the sun, stagger in the wind, and shrink in the cold. They crave a thrilling life full of conquests. They want to live! To taste the essence of life!