Ariane

Ariane is one of the seven Signature Heroes first announced in the Development Diary "Who are the Signature Heroes?" Not much is yet known about Ariane. Though it is known that she will appear in a future quest. She makes her first appearance, along with two other Signature Heroes, Sir Owen and Ozan, in The Fremennik Saga´s Three´s Company. Ariane appears to be a powerful magic user.

In Game
http://services.runescape.com/m=news/behind-the-scenes--may

Description
"Who are the Signature Heroes?" describes Ariane as being calm and having many ideas. She is indigenous to Seers' Village and has inherited the seers' fore-knowledge. She has studied at the Wizards Tower and Wizards' Guild, and she has been to almost every school of magic. She is determined to discover all the magical secrets of Gielinor, and to use them to make Gielinor a better place.

Sightings
She has featured in the background of the RuneScape homepage that was released with Dungeoneering, in which shows Ariane Dungeoneering with two of the other signature heroes Ozan and Sir Owen. She also features in the current homepage holding a magic staff and holding a ball of electricity in her hand and this same, full image can be found with the game lobby's animated background turned off. One loading screen images that provide tips feature her standing on top of a rock with two balls of electricity in her hands ready to strike zombies below her.

Trivia

 * The homepage background that features Ariane, Ozan and Sir Owen was released one and a half months before they were announced.
 * When clicking on an advertisement for RuneScape, there is also an image of Ariane.
 * In the loading screen there is a picture of her fighting a mass horde of Armoured Zombies.

The Fremmenik Sagas

 * Ariane, Ozan and Sir Owen all make their first appearences in Three's Company, while hunting down an notorious bandit named Carn, who is hiding in Daemonheim.
 * Although her magic level is supposedly not high enough to autocast fire bolt and it is blacked out on her magic tab, it can still be manually casted. This is probably a glitch.
 * Since she is shown to summon a Cub skinweaver, Ariane has a Summoning level of at least 9.
 * She is shown to know Runecrafting as she is able to solve the Tile Flip Puzzle.