In the world of Warriors, a book series written by Erin Hunter, a fanmade "Clan" of sorts lives in the frozen and harsh plains of Vinland, a new land where opportunity is given to those of the Order, a group of cats who live for battle, much like the Vikings of Norway; the cats travel to find new lands to conquer & tame. The Roles in the Order are simple. The Chieftain leads the Order. Nurses are caretakers for the Younglings & sickly. Lastly, Raiders are the warriors of the Order.