Zinnia (Also known as Zach the Ripper) is a female afterlight that crossed during the civil war. She is known for having the power of an ecto-ripper (being able to "rip" objects from the real world into everlost, or from everlost to the living world.) She has a snappy personality, and enjoys war and all the weapons involved.

Neal Shusterman wrote her an out-of-book ending on his blog as well.