Today Epic and Chair have detailed their forthcoming update to the mega-hit Infinity Blade III ($6.99). The expansion pack is called Soul Hunter and will be a free update for owners of the game. It adds a new campaign quest which sees Isa and Siris face off against a new enemy threat: Oslim the Deathless Bloodmage. As the story goes, Oslim was sent by the Worker of Secrets to kill Isa and Siris in an effort to prevent them from uncovering the secrets of an ancient observatory. One very cool aspect about this new enemy Oslim is that he sports dual Infinity Blade weapons, and if you do manage to defeat him you’ll be able to take hold of those dual weapons for yourself when playing as Siris.

In addition to the dual Infinity Blades, the Soul Hunter update contains a new set of full armor for each character. Siris gets the “fan-favorite" Vile set, while Isa gets use of the Stealth set. Also, fans of Infinity Blade II‘s seasonal Holiday Helm will be happy to see that feature return in the Soul Hunter update. It’s no coincidence the update’s launching on Halloween as it will add the Pumpkin Helm to pimp out your player with. The Holiday Helms will be persistent too, rather than rotating out with each holiday, and more Holiday Helms are planned for the future.

Additionally, Chair has taken all the player feedback they’ve received since the game’s launch last month and made some significant tweaks and balances to the game. For those who’ve beaten the main campaign, you’ll finally be able to skip past tutorial sections, the ending cutscene and credits when replaying through the game.

Also, potion, gem and forge times have been reduced across the board and completing quests will now give you a certain amount of elapsed time in the game, so hopefully the whole timer aspect will be a bit more friendly. You’ll also be able to purchase additional forge, gem and potion slots so you can do more crafting at once if your other slots are constantly being occupied. Finally, the Soul Hunter update will add new tiers to existing Goals as well as brand new Goals, giving you more opportunities to earn in-game Battle Chips.

Soul Hunter will be available on October 31st, Halloween, and with its arrival Infinity Blade III will finally be compatible with iOS 6 in addition to iOS 7.