Thor. Heart of Ice, #1

When graduate Aussie archaeologist Sibyl flies halfway around the world to work in the Arctic, she's not sure what she might find.but she wasn't counting on getting injured at the start of the dig.or being rescued by the hottest Viking she's ever seen. Thor might look like a superhero, but he has secrets buried under the ice that have been waiting a thousand years to come to light. Worse, he's missing his hammer, the weapon he needs to set things right.and Sibyl's his only hope of getting it back.
If only they can break the curse before the Viking witch who cast it wakes.