Legendary hero Xenia has gone rogue, and Ariane's vowed to take her down. You'll team up with a state-of-the-art tracking golem - whose personality will develop based on your choices.
Ultimately, you'll find out what drove Xenia to murder, and uncover a secret that could change Gielinor forever.
There's Thanksgiving fun to be had from Thursday, too, as the Lumbridge Castle chef's brother needs your help to find his wayward turkeys - there's a new title to earn for doing so.
Read on to find out more!
Heart of Stone
Heart of Stone is a members-only quest
Required skills and quests:
35 Magic, 25 Runecrafting
Carnilllean Rising, Rune Memories
Find Xenia and Ariane outside the Wizards' Tower, south of Draynor Village.
Once Xenia flees the scene, Ariane will kit you out with a tracking golem named Kipple. You'll need to tune into to the magical teleportation traces left by Xenia, and follow her trail around the world.
You'll visit a number of locations, completing puzzles or battling guardians at each one, uncovering long-lost secrets of the elder gods as you do so.
Succeed in tracking down Xenia and you'll earn a chunk of XP, plus a golem follower pet, whose personality will be defined by the choices you made during the quest.
You'll also have set in motion the events of an all-new quest line - one that'll be right at the core of RuneScape's Sixth Age.
The Lumbridge Castle cook's brother has unwittingly unleashed a flock of turkeys, and it's up to you to find them up in our Thanksgiving event, running from 00:00 GMT on 27th November to 23:59 on 30th November.
There are 20 to locate all around Gielinor - 10 in free-to-play areas, and 10 only accessible to members.
Find 10 turkeys and you'll unlock the new 'the Thanksgiver' title, plus all free-to-play rewards from Thanksgivings past.
Track down all 20 and you'll get a large XP lamp, plus all previous members' Thanksgiving rewards.
You can also join Mod Jon and Mod Neena for the RuneScape Thanksgiving Parade: 16:00 GMT on 27th November at Varrock Square on World 34. Visit the events forum thread for details of this and other fun in-game events.