The Nine Worlds

It all happened on a summer night at Stonehenge.
Natalie was an average citizen of London. He loved her family and her friends and she loved everything a normal girl would love; shopping, movies, and boys. But her whole life changed when she heard of a "supernatural occurrence" at Stonehenge and checked it out herself.
Loki was an Asgardian. Born a frost giant, he was God of Mischief and he seemed to find Natalie very captivating. After taking her to his land of Asgard, Loki finds out that the dark elves, a group of people his brother Thor had defeated long ago, were rising again. Worried about the upcoming war, Loki tries to find a way to protect Natalie.
But sadly, Natalie is taken hostage by the Dark Elves new king, Mordin. Loki tries to save her, but there is no way Mordin can just let her go, is there? Because Natalie has powers she never knew she had, and Mordin is power hungry for her abilities. That is, unless, Loki would give up his powers and die for her.