This is a BtVS, NGE, SG1, SW, ST, LotR, Halo crossover. Based on the Halloween costume episode. Very AU. The Key's spell goes both forwards and backwards in time… what happens when it interacts with Ethan's Halloween?
Rated: T - English - Adventure/Sci-Fi - Chapters: 14 - Words: 76,039 - Reviews: 152 - Favs: 216 - Follows: 257 - Updated: 8/6/2013 - Published: 3/4/2007 - Complete