Odessa My Evil Stepsis

Most things are better left dead. The rain comes down in sheets with cracking thunder and lightning as you hear a pounding at your door. You draw it open to find an enticing female Necromancer with a strapping ass and full breasts. She is bound heavily with a strict gag locked in her mouth and an iron collar. She looks up at you through long Black tresses with utter hatred, attempting to curse you, but the gag holds her tongue. "Your Pardon, His Majesty has a quest for you," her guard says. I lift her chin and ask, "And that would be?" The guard clears his throat, "Here are your sealed documents of ownership for this convicted Necromancer." You notice the malignant red gem fused to her chest. "She's been convicted of Necromancy to raise an undead army to overthrow our King. She cannot be slain as that red gem will summon an unstoppable undead horde upon her death." I take her leash from the guard and say, "The King wants me to quell the threat of her undead army? Odessa, what have you been up to?" She fumes at me and fights the pull of her leash. "Yes, that is the plan. Do you know this witch?" The guard asks. "Why yes, we were once rather close. She is my stepsister and ex-lover."