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	Featured article: Isa
Isa is an ally to Siris seen at the beginning and end of Infinity Blade II. She also played an integral role in Infinity Blade: Awakening. A professional thief, Isa crossed paths with Siris while trying to obtain the Infinity Blade. She lost the Blade to Siris, but agreed to help him find the Worker of Secrets, creator of the Infinity Blade, on the condition that she was allowed to keep it should he die in battle. Siris agreed, and they began traveling together. Later in their journey, Isa tried to steal the Blade from Siris again. Siris, having predicted the attack, disabled her crossbow using a mechanism he had prepared beforehand. Isa promised not to attempt to steal the Blade again and begged him to allow her to continue traveling with him, even if he felt he must keep her tied up in her sleep. He agreed once more. Later, Isa risked her life and was severely wounded in an attempt to save Siris from an attacker. He then completely forgave her past treachery. They traveled to Saydhi's estate, where Isa knew Siris could learn the whereabouts of the Worker. She stayed behind while Siris went ahead to find Saydhi. He learned the location of the Worker and defeated Saydhi, but Raidriar caught him by surprise and stole the Infinity Blade. He prepared to strike Siris with it, but Isa, knowing that Siris was actually a Deathless and that the Blade would kill him permanently, shot Siris in the forehead. He awoke some time later, where she explained everything to him and departed. Isa is not seen or heard from again until the end of Infinity Blade II, where she is shown walking up to the Vault of Tears where Siris had been trapped.