Complex sentence: Wanting to help her brother, Sookie asks Bill to take her to a vampire bar called Fangtasia, which is owned by Eric Northman, a vampire sheriff much older and more powerful than Bill.
Split into simpler sentences: Wanting to help her brother, Sookie asks Bill to take her to a vampire bar called Fangtasia. Fangtasia is owned by Eric Northman, a vampire sheriff much older and more powerful than Bill.