Head over to Lletya and speak to Arianwyn to get the quest kicked off.
He needs to track down the lost leaders of the elven clans and gain access to the sacred Grand Library.
Plague's End is a true Grandmaster epic, clocking in at two hours or more to complete. It's a real quester's quest, so it'll be down to you to follow leads and find your way.
As you progress, you'll travel far and wide across Gielinor, revisiting classic quest locations. You'll complete tricky light puzzles and engage enemies up to level 107 - including the legendary Dark Lord himself.
Prevail, and you'll usher in a bright new era for elven civilisation - and wrap up a tale ten years in the making.
Treasures of Tirannwn
Complete Plague's End and you'll earn the biggest reward yet bestowed by a RuneScape quest: access to Prifddinas, Lost City of the Elves - coming soon.
We're putting the finishing touches to the city now, and you'll see it open in the next few of months.
This is the update of the year: a whole new city to explore, crammed to its crystalline rafters with high-level content - as voted for by you.
Prifddinas will become a home hub for players of level 75 up, offering training from the eight elven clans, Grand Exchange access, new transport options and amazing crystal weaponry.
The Elf City will open very soon, but until then, Plague's End has other rewards for you to enjoy.
First there's no less than 500,000 XP across 10 skills. There's also the exoskeleton - a marvellous machine with a range of thieving benefits. Finally, you'll get a new title: "of the Elves".