The shadows of darkness recede from Dol Guldur, but the seeds of evil lie deep beneath the rotten leaves of Mirkwood. Thranduil's medical officer Legolas, an elf who is proficient in the spirit of vegetation and the secrets of antidote, shoulders the important task of purifying the remaining spider nests. He refined the "purifying oil" containing the light of the evening star and the deadly hemlock juice, intending to burn out this stubborn remnant of darkness. However, while traveling deep into the core of the lair, he accidentally awakened the ancient Shelob egg from its slumber. The deadly spiderling instantly parasitized his arm, gnawing at his flesh and will crazily. Facing the upcoming spider tide that could swallow up the entire dense forest, Legolas made the cruelest choice. He cut off his arm with a sword, poured poisonous corrosive oil on himself, and ignited the rotten leaves accumulated in the dense forest. The flames soaring into the sky turned into a wall of life, blocking the surging tide of darkness. When the surviving elves discovered the tenacious sprouts sprouting in the scorched earth and ashes, the amputated medical officer Legolas had transformed from a healer into the most silent and fierce guardian of the jungle. His sacrifice and the reborn green whispered the unyielding will of the dark forest.