Ah, music to my ears
The single thought went through the Lich's mind as he heard the words of the girl. A dark power not from this world began to envelop them, swirling blackness covering the area around him and Lacie. To anyone looking into the alley, the two had disappeared, now being in a completely different plane of existence. All around them was simply darkness, nothing more. They were in a plane of nothingness, seeing only each other and nothing beyond. The darkness around Odin began to coalesce in both of his hands, forming two shapes, each with different powers, and each with a different purpose. The first became a hook, with a long, almost infinite chain that disappeared into the darkness behind Odin, the metal chain taut and unmoving as the green, curved hook -the same colour as the ethereal energy that swirled around Odin at all times- was held in the mans' hand. In his other hand, the chain reached its final point, and a lantern formed. The lantern was made of bone and glass, but through the glass one could see the green energy once more, this time however in the form of wraiths and spirits. Ghost of those that had wronged Odin in the past, who's souls he had stolen and kept for his own amusement. This was where his power came from, and these were his weapons.
Bringing his right arm back, Odin threw forward the hook, which went straight and true towards the midsection of Lacie, who was still held by the dark tendrils. The hook went through her, not causing any physical damage but hurting her in a way she wouldn't be able to explain, before Odin grabbed onto the chain, and pulled back, causing the hook to fly back through towards Odin's hand once more. On the hook itself, one could see an ethereal hazel spirit, the colour of her eyes, which took on the form of Lacie briefly before becoming a small flame. Odin brought the lantern to meet the hook, at which point the hazel soul of Lacie Eventide turned the green colour of Odin's power, before being sucked in through the lantern. With the ritual completed, both the hook and the lantern dissolved into the darkness, and the darkness surrounding them ceased to be, returning them both to the alleyway where they had previously been.
"It is done."