KEY POINTS:
Two sisters in Anchorage, Alaska, are in the middle of an 11-day vigil for the latest Harry Potter book.
Chloe and Sydney Bostian have been camping in front of a bookstore in order to be among the first in their area to find out their hero's fate in the final Harry Potter novel. The girls are living out of their parents' campervan, parked in the bookstore's parking lot.