Alice the Angel of Death

Either love her or die. . .
Alice has regained her heart and it's thumping in her chest.
But she must not kill again, for with each additional murder, her heart grows blacker, her thoughts, once sweet and innocent, grow more vengeful and cruel, and her tears, once magical, grow more poisonous.
She wants to set things right and reincarnate Humpty Dumpty and the Caterpillar and the Tweedle twins. But she seems to have a bad habit of killing that she can't seem to break.
She doesn't want to kill them all over again, but sometimes these Wonderland idiots are really asking for it, don't you think?
By the author of The Poniworld Chronicles and SinEaster.